Mitsubishi MOTORS Eclipse User manual

13B-1
GROUP 13B
CONTENTS
GENERAL DESCRIPTION. . . . . . . . . 13B-3
MULTIPORT FUEL INJECTION (MFI)
DIAGNOSIS . . . . . . . . . . . . . . . . . . . . 13B-6
TROUBLESHOOTING STRATEGY . . . . . . 13B-6
TROUBLE CODE DIAGNOSIS. . . . . . . . . . 13B-6
FAIL-SAFE FUNCTION REFERENCE
TABLE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13B-21
DIAGNOSTIC TROUBLE CODE CHART . . 13B-22
SYMPTOM CHART. . . . . . . . . . . . . . . . . . . 13B-26
DIAGNOSTIC TROUBLE CODE
PROCEDURES. . . . . . . . . . . . . . . . . . . . . . 13B-29
SYMPTOM PROCEDURES . . . . . . . . . . . . 13B-530
DATA LIST REFERENCE TABLE . . . . . . . 13B-640
ACTUATOR TEST REFERENCE TABLE. . 13B-654
CHECK AT THE ENGINE CONTROL MODULE
(ECU) <M/T> OR POWERTRAIN CONTROL
MODULE (PCM) <A/T>. . . . . . . . . . . . . . . . 13B-655
INSPECTION PROCEDURE USING AN
OSCILLOSCOPE . . . . . . . . . . . . . . . . . . . . 13B-661
SPECIAL TOOLS. . . . . . . . . . . . . . . . 13B-671
ON-VEHICLE SERVICE. . . . . . . . . . . 13B-672
COMPONENT LOCATION . . . . . . . . . . . . . 13B-672
THROTTLE BODY (THROTTLE VALVE AREA)
CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . 13B-677
THROTTLE POSITION SENSOR
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . 13B-677
BASIC IDLE SPEED ADJUSTMENT . . . . . 13B-679
FUEL PRESSURE TEST . . . . . . . . . . . . . . 13B-680
FUEL PUMP CONNECTOR DISCONNECTION
(HOW TO REDUCE PRESSURIZED FUEL
LINES) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13B-682
FUEL PUMP OPERATION CHECK . . . . . . 13B-682
MULTIPORT FUEL INJECTION (MFI) RELAY
CONTINUITY CHECK . . . . . . . . . . . . . . . . . 13B-682
FUEL PUMP RELAY CONTINUITY
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13B-682
INTAKE AIR TEMPERATURE SENSOR
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13B-682
ENGINE COOLANT TEMPERATURE SENSOR
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13B-682
THROTTLE POSITION SENSOR CHECK . 13B-683
HEATED OXYGEN SENSOR CHECK . . . . 13B-684
INJECTOR CHECK . . . . . . . . . . . . . . . . . . . 13B-686
IDLE AIR CONTROL MOTOR CHECK . . . . 13B-686
EVAPORATIVE EMISSION PURGE SOLENOID
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13B-686
EGR SOLENOID CHECK . . . . . . . . . . . . . . 13B-686
EVAPORATIVE EMISSION VENTILATION
SOLENOID CHECK . . . . . . . . . . . . . . . . . . 13B-686
VARIABLE INDUCTION CONTROL SOLENOID
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13B-687
INJECTOR . . . . . . . . . . . . . . . . . . . . . 13B-687
REMOVAL AND INSTALLATION . . . . . . . . 13B-687
Continued on next page

13B-2
THROTTLE BODY ASSEMBLY . . . . 13B-689
REMOVAL AND INSTALLATION . . . . . . . . 13B-689
DISASSEMBLY AND ASSEMBLY . . . . . . . 13B-690
SPECIFICATIONS . . . . . . . . . . . . . . . 13B-692
FASTENER TIGHTENING
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . 13B-692
GENERAL SPECIFICATIONS . . . . . . . . . . 13B-692
SERVICE SPECIFICATIONS . . . . . . . . . . . 13B-693
SEALANT AND ADHESIVE . . . . . . . . . . . . 13B-694

GENERAL INFORMATION
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-3
.
GENERAL INFORMATION
M1131000100325
.
The Multiport Fuel Injection System consists of sen-
sors which detect the engine conditions, the ENGINE
CONTROL MODULE (ECM) <M/T>/POWERTRAIN
CONTROL MODULE (PCM) <A/T> which controls
the system based on signals from these sensors,
and actuators which operate under the control of the
ECM <M/T>/PCM <A/T>. The ECM <M/T>/PCM <A/
T> carries out activities such as fuel injection control,
idle air control, and ignition timing control. In addition,
the ECM <M/T>/PCM <A/T> is equipped with several
diagnostic test modes which simplify troubleshooting
when a problem develops.
.
FUEL INJECTION CONTROL
The injection drive times and injector timing are con-
trolled so that the optimum air/fuel mixture is sup-
plied to the engine to correspond to the continually-
changing engine operation conditions. A single injec-
tor is mounted at the intake port of each cylinder.
Fuel is sent under pressure from the fuel tank to the
fuel injectors by the fuel pump, with the pressure
being regulated by the fuel pressure regulator. The
regulated fuel is distributed to each of the injectors.
Fuel injection is normally carried out once for each
cylinder for every two rotations of the crankshaft. The
firing order is 1-2-3-4-5-6. Each cylinder has a dedi-
cated fuel injector. This is called multiport. The ECM
<M/T>/PCM <A/T> provides a richer air/fuel mixture
by carrying out "open-loop" control when the engine
is cold or operating under high load conditions in
order to maintain engine performance. In addition,
when the engine is under normal operating tempera-
ture after warming-up, the ECM <M/T>/PCM <A/T>
controls the air/fuel mixture by using the heated oxy-
gen sensor signal to carry out "closed-loop" control.
The closed-loop control achieves the theoretical air/
fuel mixture ratio where the catalytic converter can
obtains the maximum cleaning performance.
.
IDLE AIR CONTROL
The idle speed is kept at the optimum speed by con-
trolling the amount of air that bypasses the throttle
valve in accordance with changes in idling conditions
and engine load during idling. The ECM <M/T>/PCM
<A/T> drives the idle air control (IAC) motor to keep
the engine running at the pre-set idle target speed in
accordance with the engine coolant temperature and
A/C and other electrical load. In addition, when the A/
C switch is turned off and on while the engine is
idling, the IAC motor adjusts the throttle valve bypass
air amount according to the engine load conditions to
avoid fluctuations in the engine speed.
.
IGNITION TIMING CONTROL
The ignition power transistor located in the ignition
primary circuit turns ON and OFF to control the pri-
mary current flow to the ignition coil. This controls the
ignition timing to provide the optimum ignition timing
with respect to the engine operating conditions. The
ignition timing is determined by the ECM <M/T>/
PCM <A/T> from engine speed, intake air volume,
engine coolant temperature, and atmospheric pres-
sure.
.
DIAGNOSTIC TEST MODE
•When an abnormality is detected in one of the
sensors or actuators related to emission control,
the SERVICE ENGINE SOON/MALFUNCTION
INDICATOR LAMP illuminates to warn the driver.
•When an abnormality is detected in one of the
sensors or actuators, a diagnostic trouble code
corresponding to the abnormality is stored in the
ECM <M/T>/PCM <A/T>.
•The RAM data inside the ECM <M/T>/PCM <A/
T> that is related to the sensors and actuators
can be read with the scan tool. In addition, the
actuators can be controlled by scan tool MUT-II
(MB991502) under certain circumstances.
.
OTHER CONTROL FUNCTIONS
•Fuel Pump Control
Turns the fuel pump relay ON so that current is
supplied to the fuel pump while the engine is
cranking or running.
•A/C Compressor Clutch Relay Control
Turns the compressor clutch of the A/C ON and
OFF.
•Fan Relay Control
The radiator fan and condenser fan speeds are
controlled in response to the engine coolant tem-
perature and vehicle speed.
•Generator Output Current Control
Prevents generator output current from increas-
ing suddenly and idle speed from dropping at
times such as when the headlights are turned on.
•Variable Induction Control
Turns the solenoid of the variable induction ON
and OFF.
•Evaporative Emission Purge Control
(Refer to GROUP 17, Emission Control System −
Evaporative Emission Control System −General
Information.P.17-97)
•EGR Control
(Refer to GROUP 17, Emission Control System −
Exhaust Gas Recirculation (EGR) System −Gen-
eral Information.P.17-103)

GENERAL INFORMATION
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-4
MALTIPORT FUEL INJECTION (MFI) SYSTEM DIAGRAM
<Without variable induction system>
NOTE: For the vacuum hose routing, refer to GROUP 17, vacuum hosesP.17-89.
AK101444
6
FUEL TANK
CATALYTIC CONVERTER
FUELPRESSURE
REGULATOR
M*1
*2
M*1
EGR
VALVE
FROM
FUEL
PUMP
TO
FUEL
TANK
1 LEFT BANK HEATED OXYGEN SENSOR (FRONT)
2 VOLUME AIR FLOW SENSOR
3 INTAKE AIRTEMPERATURE SENSOR
4 THROTTLE POSITION SENSOR
5 CAMSHAFT POSITION SENSOR
6 CRANKSHAFT POSITION SENSOR
7 BAROMETRIC PRESSURE SENSOR
8 ENGINE COOLANT TEMPERATURE SENSOR
9 LEFT BANK HEATED OXYGEN SENSOR (REAR)
10 RIGHT BANK HEATED OXYGEN SENSOR (FRONT)
11 RIGHT BANK HEATED OXYGEN SENSOR (REAR)
12 MANIFOLD DIFFERENTIAL PRESSURE SENSOR
13 FUEL TANK DIFFERENTIAL PRESSURE SENSOR
14 FUEL TEMPERATURE SENSOR
15 FUEL LEVEL SENSOR
POWER SUPPLY
VEHICLE SPEED SENSOR <M/T>
OUTPUT SHAFT SPEED SENSOR <A/T>
A/C SWITCH
PARK/NEUTRAL POSITION SWITCH <A/T>
POWER STEERING PRESSURE SWITCH
IGNITION SWITCH - ST
KNOCK SENSOR
1 INJECTOR
2 EVAPORATIVE EMISSION
PURGE SOLENOID
3 IDLE AIR CONTROL MOTOR
4 EGR SOLENOID
5 EVAPORATIVE EMISSION
VENTILATION SOLENOID
FUEL PUMP RELAY 1, 2
MULTIPORT FUEL INJECTION
(MFI) RELAY
A/C COMPRESSER CLUTCH RELAY
SERVICE ENGINE SOON/
MALFUNCTION INDICATOR LAMP
DIAGNOSTIC OUTPUT
ECM<M/T>
PCM<A/T>
SENSE DECIDE ACT
AB
NOTE
*1 : Manifold port
*2 : Restrictor
3 INTAKE AIR
TEMPERATURE SENSOR
2, 7
VOLUME AIR FLOW SENSOR
(WITH BAROMETRIC
PRESSURE SENSOR)
3 IDLE AIR
CONTROL
MOTOR
4 THROTTLE POSITION SENSOR
12 MANIFOLD DIFFERENTIAL
PRESSURE SENSOR
1 INJECTOR
E
CHAMBER
VCVA
EGR
5 SOLENOID
EVAPORATIVE EMISSION
2 PURGE SOLENOID
8 ENGINE
COOLANT
TEMPERATURE
SENSOR
10RIGHTBANK
HEATEDOXYGEN
SENSOR(FRONT)
11RIGHTBANK
HEATEDOXYGEN
SENSOR(REAR) CRANKSHAFT POSITION
SENSOR
6
9 LEFT BANK HEATED
OXYGEN SENSOR (REAR) 5 CAMSHAFT
POSITION
SENSOR
14FUEL
TEMPERATURE
SENSOR
15FUELLEVEL
SENSOR
13FUELTANK
DIFFERENTIAL
PRESSURE SENSOR
LEFT BANK
HEATED
1 OXYGEN
SENSOR
(FRONT)
EVAPORATIVE
EMISSION
CANISTER
4 EVAPORATIVE
EMISSION
VENTILATION
SOLENOID FUEL TANK
AIR INLET
DISTRIBUTOR
IGNITION
COIL
VENT VALVE

GENERAL INFORMATION
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-5
<With variable induction system>
NOTE: For the vacuum hose routing, refer to
GROUP 17, vacuum hosesP.17-89 .
AK103014
FUEL TANK
CATALYTIC CONVERTER
FUELPRESSURE
REGULATOR
M*1
*2
M*1
EGR
VALVE
FROM
FUEL
PUMP
TO
FUEL
TANK
AB
NOTE
*1 : Manifold port
*2 : Restrictor
3 INTAKE AIR
TEMPERATURE SENSOR
2, 7
VOLUME AIR FLOW SENSOR
(WITH BAROMETRIC
PRESSURE SENSOR)
3 IDLE AIR
CONTROL
MOTOR
4 THROTTLE POSITION SENSOR
12 MANIFOLD DIFFERENTIAL
PRESSURE SENSOR
1 INJECTOR
E
CHAMBER
VCV A
5 EGR
SOLENOID
2 EVAPORATIVE EMISSION
PURGE SOLENOID
8 ENGINE
COOLANT
TEMPERATURE
SENSOR
10RIGHTBANK
HEATEDOXYGEN
SENSOR(FRONT)
11RIGHTBANK
HEATEDOXYGEN
SENSOR(REAR) 6 CRANKSHAFT POSITION
SENSOR
9 LEFT BANK HEATED
OXYGEN SENSOR (REAR) 5 CAMSHAFT
POSITION
SENSOR
14FUEL
TEMPERATURE
SENSOR
15FUELLEVEL
SENSOR
13FUELTANK
DIFFERENTIAL
PRESSURESENSOR
1 LEFT BANK
HEATED
OXYGEN
SENSOR
(FRONT)
EVAPORATIVE
EMISSION
CANISTER
4 EVAPORATIVE
EMISSION
VENTILATION
SOLENOID
AIR INLET
DISTRIBUTOR
IGNITION
COIL
VENT VALVE
VARIABLE INDUCTION
CONTROL ACTUATOR
VACUUM TANK
6 VARIABLE INDUCTION
CONTROL SOLENOID
1 LEFT BANK HEATED OXYGEN SENSOR (FRONT)
2 VOLUME AIR FLOW SENSOR
3 INTAKE AIR TEMPERATURE SENSOR
4 THROTTLE POSITION SENSOR
5 CAMSHAFT POSITION SENSOR
6 CRANKSHAFT POSITION SENSOR
7 BAROMETRIC PRESSURE SENSOR
8 ENGINE COOLANT TEMPERATURE SENSOR
9 LEFT BANK HEATED OXYGEN SENSOR (REAR)
10 RIGHT BANK HEATED OXYGEN SENSOR (FRONT)
11 RIGHT BANK HEATED OXYGEN SENSOR (REAR)
12 MANIFOLD DIFFERENTIAL PRESSURE SENSOR
13 FUEL TANK DIFFERENTIAL PRESSURE SENSOR
14 FUEL TEMPERATURE SENSOR
15 FUEL LEVEL SENSOR
POWER SUPPLY
VEHICLE SPEED SENSOR <M/T>
OUTPUT SHAFT SPEED SENSOR <A/T>
A/C SWITCH
PARK/NEUTRAL POSITION SWITCH <A/T>
POWER STEERING PRESSURE SWITCH
IGNITION SWITCH - ST
KNOCK SENSOR
1 INJECTOR
2 EVAPORATIVE EMISSION
PURGE SOLENOID
3 IDLE AIR CONTROL MOTOR
4 EGR SOLENOID
5 EVAPORATIVE EMISSION
VENTILATION SOLENOID
6 VARIABLE INDUCTION CONTROL
SOLENOID
FUEL PUMP RELAY 1, 2
MULTIPORT FUEL INJECTION
(MFI) RELAY
A/C COMPRESSER CLUTCH RELAY
SERVICE ENGINE SOON/
MALFUNCTION INDICATOR LAMP
DIAGNOSTIC OUTPUT
ECM<M/T>
PCM<A/T>
SENSE DECIDE ACT

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-6
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TROUBLESHOOTING STRATEGY M1131150000104
NOTE: If a DTC is erased, its "freeze frame" data will
be also erased and the readiness test status will be
reset. Store the "freeze frame" data before erasing
the DTC.
Use these steps to plan your diagnostic strategy. If
you follow them carefully, you will be sure to have
exhausted most of the possible ways to find an MFI
fault.
1. Gather as much information as possible about the
complaint from the customer.
2. Verify that the condition described by the
customer exists.
3. Check the vehicle for any MFI Diagnostic Trouble
Code (DTC).
4. If you cannot verify the condition and there are no
DTCs, the malfunction is intermittent. For
information on how to cope with intermittent
malfunctions, refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points −How
to cope with Intermittent Malfunction P.00-6.
5. If you can verify the condition but there are no
DTCs, or the system cannot communicate with
the scan tool, refer to the trouble symptom
classification table.
6. If there is a DTC, record the number of the code,
then erase the code from the memory using the
scan tool.
7. Reconfirm the malfunction symptom and carry out
a test drive with the drive cycle pattern.
8. If DTC is set again, carry out an inspection with
the inspection procedure for diagnostic trouble
codes of that code.
9. If DTC is not set again, the malfunction is
intermittent. For information on how to cope with
intermittent malfunctions, refer to GROUP 00,
How to Use Troubleshooting/Inspection Service
Points −How to cope with Intermittent Malfunction
P.00-6.
10.After repairs are completed, conduct a road test
duplicating the complaint set conditions to confirm
the malfunction has been connected.
NOTE: If the engine control module (ECM) <M/T> or
powertrain control module (PCM) <A/T> is replaced,
Immobilizer Encrypted Code Registration should be
carried out. Refer to GROUP 54A, Ignition Switch −
On-vehicle Service −Immobilizer Encrypted Code
Registration P.54A-28.
TROUBLE CODE DIAGNOSIS M1131150500165
.
SERVICE ENGINE SOON/MALFUNCTION INDICATOR
LAMP
Among the on-board diagnostic items, a Service Engine Soon/
Malfunction Indicator Lamp illuminates to notify the driver of an
emission control malfunction.
However, when an irregular signal returns to normal and the
powertrain control module judges that it has returned to normal,
the Service Engine Soon/Malfunction Indicator Lamp is
switched off.
Moreover, when the ignition switch is turned off, the lamp is
switched off. Even if the ignition switch is turned on again, the
lamp does not illuminate until the malfunction is detected.
Immediately after the ignition switch is turned on, the Service
Engine Soon/Malfunction Indicator Lamp is lit for 20 seconds to
indicate that the Service Engine Soon/Malfunction Indicator
Lamp operates normally.
.
AK000054AB
SERVICE ENGINE SOON/
MALFUNCTION INDICATOR LAMP
AB

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-7
Items Indicated by the Service Engine Soon/Malfunction Indicator Lamp
DTC NO. ITEMS
- Engine control module (ECM) <M/T> or Powertrain control module (PCM) <A/T>
malfunction
P0101 Volume air flow circuit range/performance problem
P0102 Volume air flow circuit low input
P0106* Barometric pressure circuit range/performance problem
P0107 Barometric pressure circuit low input
P0108 Barometric pressure circuit high input
P0111 Intake air temperature circuit range/performance problem
P0112 Intake air temperature circuit low input
P0113 Intake air temperature circuit high input
P0116 Engine coolant temperature circuit range/performance problem
P0117 Engine coolant temperature circuit low input
P0118 Engine coolant temperature circuit high input
P0121 Throttle position sensor circuit range/performance problem
P0122 Throttle position sensor circuit low input
P0123 Throttle position sensor circuit high input
P0125 Insufficient coolant temperature for closed loop fuel control
P0128 Coolant thermostat (Coolant temperature below thermostat regulating temperature)
P0130 Heated oxygen sensor circuit (bank 1 sensor 1)
P0131 Heated oxygen sensor circuit high voltage (bank 1 sensor 1)
P0132 Heated oxygen sensor circuit high voltage (bank 1 sensor 1)
P0133 Heated oxygen sensor circuit slow response (bank 1 sensor 1)
P0134* Heated oxygen sensor circuit no activity detected (bank 1 sensor 1)
P0135 Heated oxygen sensor heater circuit (bank 1 sensor 1)
P0136 Heated oxygen sensor circuit (bank 1 sensor 2)
P0137 Heated oxygen sensor circuit low voltage (bank 1 sensor 2)
P0138 Heated oxygen sensor circuit high voltage (bank 1 sensor 2)
P0139 Heated oxygen sensor circuit slow response (bank 1 sensor 2)
P0141 Heated oxygen sensor heater circuit (bank 1 sensor 2)
P0150 Heated oxygen sensor circuit (bank 2 sensor 1)
P0151 Heated oxygen sensor circuit low voltage (bank 2 sensor 1)
P0152 Heated oxygen sensor circuit high voltage (bank 2 sensor 1)
P0153 Heated oxygen sensor circuit slow response (bank 2 sensor 1)
P0154* Heated oxygen sensor circuit no activity detected (bank 2 sensor 1)
P0155 Heated oxygen sensor heater circuit (bank 2 sensor 1)
P0156 Heated oxygen sensor circuit (bank 2 sensor 2)
P0157 Heated oxygen sensor circuit low voltage (bank 2 sensor 2)
P0158 Heated oxygen sensor circuit high voltage (bank 2 sensor 2)
P0159 Heated oxygen sensor circuit slow response (bank 2 sensor 2)

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-8
P0161 Heated oxygen sensor heater circuit (bank 2 sensor 2)
P0171 System too lean (bank 1)
P0172 System too rich (bank 1)
P0174 System too lean (bank 2)
P0175 System too rich (bank 2)
P0181 Fuel temperature sensor circuit range/performance
P0182 Fuel temperature sensor circuit low input
P0183 Fuel temperature sensor circuit high input
P0201 Injector circuit −cylinder 1
P0202 Injector circuit −cylinder 2
P0203 Injector circuit −cylinder 3
P0204 Injector circuit −cylinder 4
P0205 Injector circuit −cylinder 5
P0206 Injector circuit −cylinder 6
P0300 Random/multiple cylinder misfire detected
P0301 Cylinder 1 misfire detected
P0302 Cylinder 2 misfire detected
P0303 Cylinder 3 misfire detected
P0304 Cylinder 4 misfire detected
P0305 Cylinder 5 misfire detected
P0306 Cylinder 6 misfire detected
P0335 Crankshaft position sensor circuit
P0340 Camshaft position sensor circuit
P0401 Exhaust gas recirculation flow insufficient detected
P0403 Exhaust gas recirculation control circuit
P0421 Warm up catalyst efficiency below threshold (bank 1)
P0431 Warm up catalyst efficiency below threshold (bank 2)
P0441 Evaporative emission control system incorrect purge flow
P0442 Evaporative emission control system leak detected (Small leak)
P0443 Evaporative emission control system purge control valve circuit
P0446 Evaporative emission control system vent control circuit
P0451 Evaporative emission control system pressure sensor range/performance
P0452 Evaporative emission control system pressure sensor low input
P0453 Evaporative emission control system pressure sensor high input
P0455 Evaporative emission control system leak detected (Gross leak)
P0456 Evaporative emission control system leak detected (Very small leak)
P0461 Fuel level sensor circuit range/performance
P0500 Vehicle speed sensor malfunction <M/T>
P0506 Idle control system RPM lower than expected
P0507 Idle control system RPM higher than expected
DTC NO. ITEMS

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-9
NOTE: If the Service Engine Soon/Malfunction Indicator Lamp illuminates because of a malfunction of the
engine control module (ECM) <M/T> or powertrain control module (PCM) <A/T>, communication between
scan tool MUT-II (MB991502) and the ECM <M/T> or PCM <A/T> is impossible. In this case, the diagnostic
trouble code cannot be read.
NOTE: After the ECM <M/T> or PCM <A/T> has detected a malfunction, the Service Engine Soon/Malfunc-
tion Indicator Lamp illuminates when the engine is next turned on and the same malfunction is re-detected.
However, for items marked with a "*" in the DTC NO. column, the Service Engine Soon/Malfunction Indicator
Lamp illuminates on the first detection of the malfunction.
NOTE: After the Service Engine Soon/Malfunction Indicator Lamp illuminates, it will be switched off under the
following conditions.
.
•When the ECM <M/T> or PCM <A/T> monitored the power train malfunction three times* and met set
condition requirements, it detected no malfunction. *: In this case, "one time" indicates from engine start to
stop.
•For misfiring or a fuel trim malfunction, when driving conditions (engine speed, engine coolant tempera-
ture, etc.) are similar to those when the malfunction was first recorded.
NOTE: Sensor 1 indicates the sensor mounted at a position closest to the engine, and sensor 2 indicates the
sensor mounted at the position second closest to the engine.
NOTE: Bank 1 indicates the right bank side cylinder, and bank 2 indicates the left bank side cylinder.
P0513 Immobilizer malfunction
P0551 Power steering pressure sensor circuit range/performance
P0660 Variable induction control circuit malfunction
P0705 Transmission range sensor circuit malfunction (RPNDL input)
P0712 Transmission fluid temperature sensor circuit low input
P0713 Transmission fluid temperature sensor circuit high input
P0715 Input/Turbine speed sensor circuit
P0720 Output speed sensor circuit
P0731 Gear 1 incorrect ratio
P0732 Gear 2 incorrect ratio
P0733 Gear 3 incorrect ratio
P0734 Gear 4 incorrect ratio
P0736 Gear R incorrect ratio
P0741 Torque converter clutch circuit performance or stuck off
P0742 Torque converter clutch circuit stuck on
P0743 Torque converter clutch circuit electrical
P0753 Shift solenoid "A" electrical
P0758 Shift solenoid "B" electrical
P0763 Shift solenoid "C" electrical
P0768 Shift solenoid "D" electrical
P1400 Manifold differential pressure sensor circuit malfunction
P1603* Battery backup circuit malfunction
P1751 A/T control relay malfunction
DTC NO. ITEMS

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-10
HOW TO READ AND ERASE DIAGNOSTIC
TROUBLE CODE
Refer to GROUP 13A, Trouble code diagnosis −How to Read
and Erase Diagnostic Trouble Codes P.13A-5.
PROVISIONAL DTCs [MUT-II OBD-II Test Mode-
Results (Mode 5)]
Refer to GROUP 13A,Trouble code diagnosis −Provisional
DTCs [MUT-II OBD-II Test Mode-Results (Mode 5)]P.13A-5.
MODE 6 REFERENCE TABLE
The engine powertrain control module (ECM) <M/T> or powertrain control module (PCM) <A/T> monitors the
condition of emission control system.
By selecting MODE 6 using scan tool, Test Result and Limit Value (minimum) *1 or (maximum) *2 about the
main items of emission control system which ECM <M/T> or PCM <A/T> monitors can be confirmed. The
value at the last monitoring is output by ECM <M/T> or PCM <A/T> as a test result.
TEST
ID
MONITORING
ITEM
SIMPLE TECHNICAL
DESCRIPTION
INDICATION OF SCAN
TOOL
CONVERSION
COEFFICIENT IN
USING
GENERAL SCAN
TOOL
01 Catalyst
monitor (Bank
1)
ECM <M/T> or PCM <A/T>
monitors the deterioration of
catalyst at right bank side by the
output frequency ratio between
right bank heated oxygen sensor
(front) and right bank heated
oxygen sensor (rear).
Catalyst Frequency
Ratio Bank 1
Test Result and Limit
Value (max.)
×0.0039
02 Catalyst
monitor (Bank
2)
ECM <M/T> or PCM <A/T>
monitors the deterioration of
catalyst at left bank side by the
output frequency ratio between left
bank heated oxygen sensor (front)
and left bank heated oxygen sensor
(rear).
Catalyst Frequency
Ratio Bank 2
Test Result and Limit
Value (max.)
×0.0039
03 EGR monitor ECM <M/T> or PCM <A/T>
monitors the operation of EGR
system by the pressure difference
of intake manifold between before
and after introduction of EGR using
the manifold differential pressure
sensor.
EGR Monitor Pressure
Value
Test Result and Limit
Value (min.) kPa
×0.43 kPa
06 Evaporation
leak monitor
(Small leak)
ECM <M/T> or PCM <A/T>
monitors the leak of fuel
evaporation gas by the reduction of
vacuum in tank after appointed time
using the fuel tank differential
pressure sensor after making the
fuel tank and the fuel line vacuum.
EVAP Leak Mon. 1mm
Pressure Value
Test Result and Limit
Value (max.) kPa
×0.032 kPa

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-11
NOTE: *1: Minimum value: The test fails if test value is less than this value.
NOTE: *2: Maximum value: The test fails if test value is greater than this value.
07 Evaporation
leak monitor
(Gross leak)
ECM <M/T> or PCM <A/T>
monitors the leak of fuel
evaporation gas by checking
whether the pressure can be
reduced (the amount of pressure
reduction) using the fuel tank
differential pressure sensor after
sealing the fuel tank and the fuel
line.
EVAP Leak Mon. Gross
Pressure Value
Test Result and Limit
Value (min.) kPa
×0.032 kPa
08 Evaporation
leak monitor
(Very small
leak)
ECM <M/T> or PCM <A/T>
monitors the leak of fuel
evaporation gas by the reduction of
vacuum in tank after appointed time
using the fuel tank differential
pressure sensor after making the
fuel tank and the fuel line vacuum.
EVAP Leak Mon.
0.5mm Pressure Value
Test Result and Limit
Value (max.) kPa
×0.032 kPa
09 Right bank
heated oxygen
sensor (front)
monitor (Rich/
Lean
Switching)
ECM <M/T> or PCM <A/T>
monitors the deteriorated condition
of the right bank heated oxygen
sensor (front) by checking the lean/
rich Switching frequency of the right
bank heated oxygen sensor (front).
HO2S B1 SENSOR1
Rich/Lean Switching
Count
Test Result and Limit
Value (min.)
×1 count
0A Left bank
heated oxygen
sensor (front)
monitor (Rich/
Lean
Switching)
ECM <M/T> or PCM <A/T>
monitors the deteriorated condition
of the left bank heated oxygen
sensor (front) by checking the lean/
rich Switching frequency of the left
bank heated oxygen sensor (front).
HO2S B2 SENSOR1
Rich/Lean Switching
Count
Test Result and Limit
Value (min.)
×1 count
0B Right bank
heated oxygen
sensor (rear)
monitor
(Voltage)
ECM <M/T> or PCM <A/T> checks
the output voltage of the right bank
heated oxygen sensor (rear) in
order to monitor whether the heated
oxygen sensor (rear) output is
stuck.
HO2S B1 SENSOR2
Change in Volt
Test Result and Limit
Value (min.)
×19.5 mV
0C Left bank
heated oxygen
sensor (rear)
monitor
(Voltage)
ECM <M/T> or PCM <A/T> checks
the output voltage of the left bank
heated oxygen sensor (rear) in
order to monitor whether the left
bank heated oxygen sensor (rear)
output is stuck.
HO2S B2 SENSOR2
Change in Volt
Test Result and Limit
Value (min.)
×19.5 mV
TEST
ID
MONITORING
ITEM
SIMPLE TECHNICAL
DESCRIPTION
INDICATION OF SCAN
TOOL
CONVERSION
COEFFICIENT IN
USING
GENERAL SCAN
TOOL

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-12
DIAGNOSTIC BY DIAGNOSTIC TEST MODE II
(INCREASED SENSITIVITY)
Refer to GROUP 13A, Trouble code diagnosis −Diagnostic by
Diagnostic Test Mode II (Increased Sensitivity) P.13A-5.
INSPECTION USING SCAN TOOL MB991502,
DATA LIST AND ACTUATOR TESTING
Required Special Tool:
•MB991502: Scan Tool (MUT-II)
CAUTION
To prevent damage to scan tool MB991502, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991502.
1. Connect scan tool MB991502 to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Carry out inspection by means of the data list and the
actuator test function. If there is an abnormality, check and
repair the chassis harnesses and components. Refer to
Data List Reference Table. Refer to Actuator Test Reference
Table P.13B-654.
4. Re-check using scan tool MB991502 and check to be sure
that the abnormal input and output have returned to normal
because of the repairs.
5. Erase the diagnostic trouble code (s).
6. Turn the ignition switch to the "LOCK" (OFF) position.
7. Disconnect scan tool MB991502 from the data link
connector.
8. Start the engine again and do a test drive to confirm that the
problem is eliminated.
ON-BOARD DIAGNOSTICS
The engine control module (ECM) <M/T> or powertrain control module (PCM) <A/T> monitors the input/out-
put signals (some signals all the time and others under specified conditions) of the ECM <M/T> or PCM <A/
T>. When a malfunction continues for a specified time or longer after the irregular signal is initially monitored,
the ECM <M/T> or PCM <A/T> judges that a malfunction has occurred. After the ECM <M/T> or PCM <A/T>
first detects a malfunction, a diagnostic trouble code is recorded when the engine is restarted and the same
malfunction is re-detected. However, for items marked with a "*", a diagnostic trouble code is recorded on the
first detection of the malfunction. There are 92 diagnostic items. The diagnostic results can be read out with a
scan tool. Since memorization of the diagnostic trouble codes is backed up directly by the battery, the diag-
nostic results are memorized even if the ignition key is turned off. The diagnostic trouble codes will, however,
be erased when the battery terminal or the ECM <M/T> or PCM <A/T> connector is disconnected. In addition,
the diagnostic trouble code can also be erased by turning the ignition switch to "ON" position and sending the
diagnostic trouble code erase signal from scan tool MUT-II (MB991502) to the ECM <M/T> or PCM <A/T>.
NOTE: If the sensor connector is disconnected with the ignition switch turned on, the diagnostic trouble code
is memorized. In this case, send the diagnostic trouble code erase signal to the ECM <M/T> or PCM <A/T> in
order to erase the diagnostic memory.
The 92 diagnostic items are all indicated sequentially from the smallest code number. The ECM <M/T> or
PCM <A/T> records the engine operating condition when the diagnostic trouble code is set. This data is
called "freeze frame" data. This data can be read by using the scan tool, and can then be used in simulation
tests for troubleshooting. Data items are as follows.
AKX01177
16 PIN
MB991502
AB

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-13
NOTE: If the ECM <M/T> or PCM <A/T> detects multiple malfunctions, the ECM <M/T> or PCM <A/T> stores
the data for only the first item that was detected.
However, if the ECM <M/T> or PCM <A/T> detects a misfire or a fuel system malfunction, ECM <M/T> or
PCM <A/T> stores the data by giving priority to the misfire or fuel system malfunction, regardless of the order
in which the malfunction was detected.
NOTE: As for diagnostic trouble code P1603, "freeze frame" data is not memorized.
OBD- II DRIVE CYCLE
All kinds of diagnostic trouble codes (DTCs) can be monitored by carrying out a test drive according to the fol-
lowing six drive cycle pattern. In other words, doing such a drive regenerates any kind of trouble which
involves illuminating the Service Engine Soon/Malfunction Indicator Lamp and verifies the repair procedure
has eliminated the trouble (the Service Engine Soon/Malfunction Indicator Lamp is no longer illuminated).
CAUTION
Two technicians should always be in the vehicle when carrying out a test drive.
NOTE: Check that the diagnosis trouble code (DTC) is not output before traveling in the drive cycle pattern.
Erase the DTC if it has been output.
MUT-II SCAN TOOL
DISPLAY
ITEM
NO.
DATA ITEM UNIT or STATE
ECT SENSOR 21 Engine coolant temperature sensor °C or °F
ENGINE LOAD 87 Calculation load value %
ENGINE SPEED 22 Crankshaft position sensor r/min
IAT SENSOR 13 Intake air temperature sensor °C or °F
IG. TIMING ADV 44 Ignition coils and ignition power
transistor
deg
LONG TRIM B1 81 Long-term fuel compensation %
LONG TRIM B2 83 Long-term fuel compensation %
SHORT TRIM B1 82 Short-term fuel compensation %
SHORT TRIM B2 84 Short-term fuel compensation %
SYS. STATUS B1 88 Fuel control condition (right bank) •Open loop
•Closed loop
•Open loop-drive
condition
•Open loop-DTC set
•Closed loop-O2(rear)
failed
SYS. STATUS B2 89 Fuel control condition (left bank) •Open loop
•Closed loop
•Open loop-drive
condition
•Open loop-DTC set
•Closed loop-O2(rear)
failed
TP SENSOR 8A Throttle position sensor %
VAF SENSOR 12 Volume air flow sensor (mass air flow
rate)
gm/s
VSS 24 Vehicle speed sensor km/h or mph

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-14
DRIVE CYCLE PATTERN LIST
.
PROCEDURE MONITOR ITEM DIAGNOSTIC TROUBLE
CODE (DTC)
1 Evaporative emission control system leak monitor P0441, P0442, P0451,
P0452, P0453, P0455,
P0456
2 Fuel trim monitor P0171, P0172, P0174,
P0175
3 Catalytic converter monitor P0421, P0431
4 Heated oxygen sensor monitor P0133, P0139, P0153,
P0159
5 Exhaust gas recirculation (EGR) system monitor P0401
6 Other monitor Main components P0134, P0154, P0300,
P0301, P0302, P0303,
P0304, P0305, P0306,
P0506, P0507,P1400
Sensors and switches P0101, P0102, P0106,
P0107, P0108, P0111,
P0112, P0113, P0116,
P0117, P0118, P0121,
P0122, P0123, P0125,
P0181, P0182, P0183,
P0325, P0335, P0340,
P0461
Wire breakage and short
circuit
P0130, P0131,P0132,
P0135, P0136, P0137,
P0138, P0141, P0150,
P0151, P0152, P0155,
P0156, P0157, P0158,
P0161, P0201, P0202,
P0203, P0204, P0205,
P0206, P0403, P0443,
P0446

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-15
PROCEDURE 1
EVAPORATIVE EMISSION CONTROL SYSTEM LEAK MONITOR
DTC P0441, P0442, P0451, P0452, P0453, P0455, P0456
Drive cycle
pattern
One drive [from start to ignition switch to the "LOCK" (OFF) position] will be completed while
traveling with the following drive pattern. It will take 8 minutes. You must complete this drive
twice.
NOTE: . Vehicle speed and throttle opening angle should be within the shaded range. Test
drive must be completed within 16 minutes of "Key on."
Inspection
conditions
•Engine coolant temperature: 30°C (75°F) or less (The engine is stopped before the test
drive is started)
•Atmospheric temperature: 5 −45°C (41 −113°F)
•Condition of A/T: Selector lever D range
•Test may not run if fuel tank is over 2/3 full.
Test
procedure
1. Engine: start
2. Accelerate until the vehicle speed is 89 −97 km/h (55 −60 mph).
3. Travel for 200 seconds or more while keeping the vehicle speed at 89 −97 km/h (55 −60
mph). (M/T = 5th speed)
4. While keeping the accelerator pedal opening degree constant, keep the vehicle speed at
89 −97 km/h (55 −60 mph) and travel for 150 seconds or more. (During monitor)
5. Return the vehicle to the shop, then turn the ignition switch to the "LOCK" (OFF) position.
6. Confirm that the diagnostic trouble code (DTC) is not output.
7. If DTC P0441 is output, refer to DTC P0441 −Evaporative Emission Control System
Incorrect Purge Flow P.13B-351.
If DTC P0442 is output, refer to DTC P0442 −Evaporative Emission Control System Leak
Detected (Small Leak) P.13B-353.
If DTC P0451 is output, refer to DTC P0451 −Evaporative Emission Control System
Pressure Sensor Range/performance P.13B-383.
If DTC P0452 is output, refer to DTC P0452 −Evaporative Emission Control System
Pressure Sensor Low Input P.13B-400.
If DTC P0453 is output, refer to DTC P0453 −Evaporative Emission Control System
Pressure Sensor High Input P.13B-416.
If DTC P0455 is output, refer to DTC P0455 −Evaporative Emission Control System Leak
Detected (Gross Leak) P.13B-432.
If DTC P0456 is output, refer to DTC P0456 −Evaporative Emission Control System Leak
Detected (Very Small Leak) P.13B-451.
AKX01345AKX01345
(3)
(2)
(1)
(4)
(5)
200 SECONDS
OR MORE
PREPARATION
PERIOD
ENGINE START IGNITION SWITCH:
"LOCK" (OFF) position
DURING
MONITOR
150 SECONDS
OR MORE
89 - 97 km/h (55 - 60 mph)
M/T: 5TH SPEED
97
(60)
64
(40)
32
(20)
0
100
50
0
VEHICLE SPEED
km/h (mph)
CALCULATED
LOAD (%)
AKX01345AC

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-16
.
PROCEDURE 2
.
FUEL TRIM MONITOR
DTC P0171, P0172,P0174, P0175
Drive cycle
pattern
This monitor [from start to ignition switch to the "LOCK" (OFF) position] will be completed
while traveling with the following drive cycle pattern. It will take 35 minutes. You must
complete this drive twice.
NOTE: Vehicle speed and throttle opening angle should be within the shaded range.
Inspection
conditions
•Engine coolant temperature: 80 −97°C (176 - 207°F)
•Atmospheric temperature: -10 −60°C (14 −140°F)
•Condition of A/T: Selector lever D range
Test
procedure
1. Engine: start
2. Accelerate until the vehicle speed is 89 −97 km/h (55 −60 mph).
3. Travel for 30 minutes or more while keeping the vehicle speed at 89 −97 km/h (55 - 60
mph). (M/T = 5th speed) Carry out one gradual acceleration /deceleration, returning to a
speed of 50 −60 mph within 120 seconds. (During monitor)
4. Return the vehicle to the shop, then turn the ignition switch to the "LOCK" (OFF) position.
5. Confirm that the diagnostic trouble code (DTC) is not output.
6. If DTC P0171 is output, refer to DTC P0171 −System too lean (Bank1) P.13B-245.
If DTC P0172 is output, refer to DTC P0172 −System too rich (Bank1) P.13B-252.
If DTC P0174 is output, refer to DTC P0174 −System too lean (Bank2) P.13B-256.
If DTC P0175 is output, refer to DTC P0175 −System too rich (Bank2) P.13B-262.
AKX01346AKX01346
(3)
(2)
(1)
(4)
30 MINUTES OR MORE
89 - 97 km/h (55 - 60 mph)
M/T: 5TH SPEED
WITH 120 SECONDS
ENGINE START IGNITION SW-
ITCH: "LOCK"
(OFF) position
DURING MONITOR
97
(60)
64
(40)
32
(20)
0
100
50
0
VEHICLE SPEED
km/h (mph)
CALCULATED
LOAD (%)
AKX01346 AC

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-17
PROCEDURE 3
CATALYTIC CONVERTER MONITOR
DTC P0421, P0431
Drive cycle
pattern
This monitor [from start to ignition switch to the "LOCK" (OFF) position] will be completed
while traveling with the following drive cycle pattern. It will take 20 minutes. You must
complete this drive twice.
NOTE: . Vehicle speed and throttle opening angle should be within the shaded range.
Inspection
conditions
•Atmospheric temperature: −10°C (14°F) or more
•A/C switch: OFF
•Condition of A/T: Selector lever D range
Test
procedure
1. Engine: start
2. Accelerate until the vehicle speed is 72 km/h (45 mph).
3. Travel for 300 seconds or more while keeping the vehicle speed at 72 −97 km/h (45 - 60
mph). (M/T = 5ht speed)
4. Decelerate until the vehicle speed is within 56 −64 km/h (35 −40 mph).
5. While keeping the accelerator pedal opening degree constant, keep the vehicle speed at
56 −64 km/h (35 −40 mph) and travel for 90 seconds or more. (During monitor)
6. Fully close the throttle and decelerate, and keep the deceleration state for 10 seconds.
Then, quickly accelerate until the vehicle speed reaches 56 −64 km/h (35 −40 mph).
Then, repeat steps 5 and 6, and complete six monitoring sessions.
7. Return the vehicle to the shop, then turn the ignition switch to the "LOCK" (OFF) position.
8. Confirm that the diagnostic trouble code (DTC) is not output.
9. 9. If DTC P0421 is output, refer to DTC P0421 −Warm Up Catalyst Efficiency Below
Threshold (Bank 1) P.13B-346.
If DTC P0431 is output, refer to DTC P0431 −Warm Up Catalyst Efficiency Below
Threshold (Bank 2) P.13B-348.
AKX01347
(3)
(2)
(1)
(4)
(5) (5)
(6) (6) (6)
(5) (5)
(7)
300 SECONDS OR MORE
72 - 97 km/h (45 - 60 mph)
M/T: 5TH SPEED
PREPARATION
PERIOD
ENGINE
START IGNITION
SWITCH:
"LOCK"
(OFF) position
1 ST
MON-
ITOR
FULL
DECEL-
ERATION
FULL
DECEL-
ERATION
FULL
DECEL-
ERATION
2 ND
MON-
ITOR
6 TH
MON-
ITOR
90 SECONDS OR MORE
56 - 64 km/h (35 - 40 mph)
M/T: 4TH SPEED
97
(60)
64
(40)
32
(20)
0
100
50
0
VEHICLE
SPEED
km/h (mph)
CALCULATED
LOAD (%)
AKX01347AC

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-18
.
PROCEDURE 4
HEATED OXYGEN SENSOR MONITOR
DTC P0133, P0139, P0153, P0159
Drive cycle
pattern
This monitor [from start to ignition switch to the "LOCK" (OFF) position] will be completed
while traveling with the following drive cycle pattern. It will take 5 minutes. You must
complete this drive twice.
NOTE: Vehicle speed and throttle opening angle should be within the shaded range.
Inspection
conditions
•Engine coolant temperature: 80°C (176°F) or more
•Atmospheric temperature: −10°C (14°F) or more
•Condition of A/T: Selector lever D range
Test
procedure
Engine: start
Accelerate until the vehicle speed is 56 −64 km/h (35 −40 mph).
While keeping the accelerator pedal opening degree constant (M/T = 4th speed), keep the
vehicle speed at 56 −64 km/h (35 −40 mph) and travel for 120 seconds or more. (During
monitor)
Return the vehicle to the shop, then turn the ignition switch to the "LOCK" (OFF) position.
Confirm that the diagnostic trouble code (DTC) is not output.
If DTC P0133 is output, refer to DTC P0133 −Heated Oxygen Sensor Circuit Slow
Response (Bank 1 Sensor 1) P.13B-140.
If DTC P0139 is output, refer to DTC P0139 −Heated Oxygen Sensor Circuit Slow
Response (Bank 1 Sensor 2) P.13B-174.
If DTC P0153 is output, refer to DTC P0153 −Heated Oxygen Sensor Circuit Slow
Response (Bank 2 Sensor 1) P.13B-202.
If DTC P0159 is output, refer to DTC P0159 −Heated Oxygen Sensor Circuit Slow
Response (Bank 2 Sensor 2) P.13B-236.
AKX01348AKX01348
(3)
(2)
(1)
(4)
120 SECONDS OR MORE
56 - 64 km/h (35 - 40 mph)
M/T: 4TH SPEED
ENGINE
START IGNITION
SWITCH: "LOCK"
(OFF) position
DURING MONITOR
97
(60)
64
(40)
32
(20)
0
100
50
0
VEHICLE SPEED
km/h (mph)
CALCULATED
LOAD (%)
AKX01348AC

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-19
.
PROCEDURE 5
EXHAUST GAS RECIRCULATION (EGR) SYSTEM MONITOR
DTC P0401
Drive cycle
pattern
This monitor [from start to ignition switch to the "LOCK" (OFF) position] will be completed
while traveling with the following drive cycle pattern. It will take 10 minutes. You must
complete this drive twice.
NOTE: Vehicle speed and throttle opening angle should be within the shadedrange.
Inspection
conditions
•Engine coolant temperature: 80°C (176°F) or more
•Atmospheric temperature: 5°C (41°F) or more
•A/C switch: OFF
•Condition of A/T: Selector lever D range
Test
procedure
1. Engine: start
2. Accelerate until the vehicle speed is 56 −64 km/h (35 −40 mph).
3. Travel for 20 seconds or more while keeping the vehicle speed at 56 −64 km/h (35 −40
mph). (M/T = 4th speed)
4. Fully close the throttle from an engine speed of 2,000 −3,000 r/min, and decelerate to
approx. 900 r/min without applying the brakes. Do not steer the handle or turn the light
ON/OFF during this time. (During monitor)
5. Accelerate until the vehicle speed reaches 56 −64 km/h (35 −40 mph), and travel for 20
seconds or more. Then, repeat steps 4 and 5 and complete 8 monitor sessions.
6. Return the vehicle to the shop, then turn the ignition switch to the "LOCK" (OFF) position.
7. Confirm that the diagnostic trouble code (DTC) is not output.
8. If DTC P0401 is output, refer to DTC P0401 −Exhaust Gas Recirculation Flow Insufficient
detected P.13B-336.
AKX01349
(2)
AKX01349
(3) (5) (5) (5) (5)
(2)
(1)
(4) (4) (4) (4) (4)
20 SECONDS OR MORE
56 - 64 km/h (35 - 40 mph)
M/T: 4TH SPEED
20 SECONDS OR MORE
1 ST
MON-
ITOR
7 TH
MON-
ITOR
8 TH
MON-
ITOR
2 ND
MON-
ITOR
ENGINE START IGNITION
SWITCH:"LOCK"
(OFF) position
FULL
DECEL-
ERATION
FULL
DECEL-
ERATION
FULL
DECEL-
ERATION
FULL
DECEL-
ERATION
FULL
DECEL-
ERATION
64
(40)
32
(20)
0
100
50
0
VEHICLE
SPEED
km/h (mph)
CALCULATED
LOAD (%)
AKX01349AC

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-20
.
PROCEDURE 6
OTHER MONITOR (Main components, sensors and switches, wire breakage and short circuit)
DTC •Main components: P0134, P0154, P0300, P0301, P0302, P0303, P0304, P0305, P0306,
P0506, P0507, P1400
•Sensors and switches: P0101, P0102, P0106, P0107, P0108, P0111, P0112, P0113,
P0116, P0117, P0118, P0121, P0122, P0123, P0125, P0181, P0182, P0183, P0325,
P0335, P0340, P0461
•Wire breakage and short circuit: P0130, P0131, P0132, P0135, P0136, P0137, P0138,
P0141, P0150, P0151, P0152, P0155, P0156, P0157, P0158, P0161, P0201, P0202,
P0203, P0204, P0205, P0206, P0403, P0443, P0446
Drive cycle
pattern
This monitor [from start to ignition switch to the "LOCK" (OFF) position] will be completed
while traveling with the following drive cycle pattern. It will take 10 minutes. You must
complete this drive twice.
NOTE: . Drive according to the graph below.
Inspection
conditions
•Engine coolant temperature: 80°C (176°F) or more
•Atmospheric temperature: 5°C (41°F) or more
•Condition of A/T: Selector lever D range
Test
procedure
Engine: start
Accelerate until the vehicle speed is 56 −64 km/h (35 −40 mph), and travel for 300 seconds
or more. (M/T = 4th speed)
Return the vehicle to the shop.
After stopping the vehicle, continue idling for 300 seconds, and then turn the ignition switch
to the "LOCK" (OFF) position. Moreover, the vehicle should be set to the following
conditions for idling.
•A/C switch: OFF
•Lights and all accessories: OFF
•Transaxle: P range
•Steering wheel: Straightforward position
Confirm that the diagnostic trouble code (DTC) is not output.
If a DTC is displayed, refer to Diagnostic Trouble Code Chart P.13B-22.
AKX01350AKX01350
(3)
(2)
(1)
(4)
300 SECONDS OR MORE
56 - 64 km/h (35 - 40 mph)
M/T: 4TH SPEED
ENGINE: IDLING
TRANSMISSION: NEUTRAL
300 SECONDS
ENGINE START IGNITION
SWITCH:"LOCK"
(OFF) position
64
(40)
32
(20)
0
100
50
0
VEHICLE
SPEED
km/h (mph)
CALCULATED
LOAD (%)
AKX01350 AC