Saab 9000 User manual

Saab 9000
Service Manual
M 1985-93
@
2:3 LH Fuel injection system
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Technical data 1
Special tools 11
Technical description 15
Saab 9000 Fault diagnosis 53
Adjustment/replacement of
components 183
SERVICE Connectors and grounding points 245
Wiring diagrams 269
MANUAL
2:3LHFuelinjection
system
M 1985-93
Foreword
This service manual supersedes:
• Service Manual 2:3 Fuel system,
fuel injection engine M1985-1989-
• Service Information 240-1106
• The text dealing with the LH fuel system
in 9000 M1988-91 "News" manuals
Contents subject to alteration without notice.
Saab Automobile AB
RECVCABLE PAPER
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'
Technical data
Special tools
Technical description 15
Saab 9000 Fault diagnosis 53
Adjustment/replacement of
components 183
SERVICE Connectors and grounding points
245
MANUAL Wiring diagrams
269
2:3LHFuelinjection
system
M 1985-93
Foreword
This service manual supersedes:
• Service Manual 2:3 Fuel system,
fuel injection engine M1985-1989-
• Service Information 240-1106
• The text dealing with the LH fuel system
in 9000 M1988-91 "News" manuals
Contents subject to alteration without notice.
Saab AutomobileAB
RECYCABLE PAPER
jxh

Warning, Importantand·Note
The headings "Warning", "Important" and "Note"
occur from time to time in the Service Manual. They
are used to draw the attention of the reader to in-
formation of special interest and seriousness. The
importance of the information is indicated by the
three different headings and the difference between
them is explained below.
WARNING
Warns of the risk of material damage and grave
injury to mechanics and the driver, as well as
serious damage to the car.
Important
Points out the risk of minor damage to the car and
also warns the mechanic of difficulties and time-
wasting mistakes.
Note
Hints and tips on how the work can be done in a
way that saves time and labour. This information is
not supplied for.reasons of safety.
Market codes
The codes refer to market specifications
AT
AU
BE
CA
CH
DE
DK
ES
EU
FE
Fl
FR
Austria
Australia
Belgium
Canada
Switzerland
Germany
Denmark
Spain
Europe
Far East
Finland
France
©Saab Automobile AB 1995
Production: Service Support, Saab Automobile AB, Trollhattan, Sweden
GB
GR
IS
IT
JP
ME
NL
NO
SE
us
UC
Great Britain
Greece
Iceland
Italy
Japan
Middle East
Netherlands
Norway
Sweden
USA
US California
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Technical data 1
Technical data
Coolant temperature sensor . . . . . . . . . . 1
Auxiliary air valve M1985 . . . . . . . . . . . 1
IAC valve M1986-. . . . . . . . . . . . . . . . 2
Full-load enrichment . . . . . . . . . . . . . . 2
Fuel pump ................... 3
Fuel tank .................... 3
CO idling .................... 3
Pulse ratio, closed loop LH 2.2 . . . . . . . . 4
Coolanttemperaturesensor
Mass air flow sensor . . . . . . . . . . . . . . 4
Oxygen sensor . . . . . . . . . . . . . . . . . 5
Injectors ..................... 5
Summary of LH components . . . . . . . . . 6
Fuelpressureregulator ............ 9
EVAPca'nisterpurge.valve . . . . . . . . . . 9
Pressureswitch . . . . . . . . . . . . . . . . 9
Tighteningtorques . .. . . . . . . . . . . . . 10o
Designation 9357021(Bosch0280130026)or
_________ 0280130032)(TCScars)
Resistanceat 0°c (32°F) Ohms 5800± 10 %
200C(68°F) Ohms 2600± 7 %
80°C (176°F) Ohms 320 ± 5 %
Note:Temperaturesensor 87 88 200 containstwo parallelcircuits.The abovefigures referto each circuit.
Auxiliary air valve M1985
Resistanceat 20°c (68°F) Ohms 40-60
Saab 9000
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2 Technical data
Idle air control valve (IAC) M1986-
Resistance at 20°c (68°F), LH 2.2 Ohms
LH 2.4, LH 2.4.1 Ohms
LH 2.4.2 Ohms
Full-load enrichment
Throttle position switch LH 2.2, 2.4, 2.4.1
(throttle valve angle when switch is
closed) degrees (
0)
CO content during simulated full-load
enrichment (not cat.) %
Throttle position sensor LH 2.4.2. V
Ignition on, voltage across pins 2
and 3 V
Saab 9000
20
±
5 (pins 2-1 and 2-3)
7
±
5 (pins 1-2)
12
±
3 (pins 2-1 and 2-3)
approx. 72
4-6 (increases 2-4 %)
0.25 (closed throttle position)
4.0 (wide open throttle)
0
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Fuel pump
Capacity
Fuel tank
cm3/30 s
cm3/30 s
Total capacity, model years 1985-1989 litres (qts)
model years 1990, 1992- litres (qts)
model year 1991 litres (qts)
Fuel remaining when low fuel warning
lamp lights up litres (qts)
min. 900 (Bosch)
min. 700 (Walbro)
68 (71)
66 (69)
62 (65)
approx. 7 (7.4)
CO idling, idling speed 850 rpm (not cat.)
Engine Modelyear CO%
B202 Turbo 1985- 1.3 ±0.3
B202i 1986- 1.0 ±0.5
---
B234i 1991- 1.0 ±0.5
Saab 9000
.Technical data 3
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4 Technical data
Pulse ratio, closed loop LH 2.2
Idling speed 850
±
50 rpm
Engine Modelyear Pulseratio
8202 1985-1988 50/50
Mass air flow sensor
Voltage is proportional to engine load. The greater
the load, the higher the voltage.
Important
A mass air flow sensor of plastic must never be
replaced by a mass air flow sensor of aluminium, or
vice versa.
Saab9000
Remarks
Readings taken with ISAT scan tool and ca-
bles or with pulse ratio meter 83 93 597
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Oxygen sensor
Signal voltage 0-1 V when system in operation. Re-
sistance, preheating 4 ± 2 ohms (at 20°C).
Injectors
Flow capacity
Fuel pressure regulator,
opening pressure (bar)
2.5 (Turbo 1985-86)
2.8 (Turbo 1987-)
3.0 (B202i)
3.0 (B234i
3.0 Turbo (B234)
min.
(ml/30 s)
104
110
90
125
145
Technical data 5
Check that flow capacity is the same for all injec-
tors.
The specified flow rates are valid at room tempera-
ture (20 ± 1°C).
Injector opening duration is proportional to engine
load. The greater the load, the longer the opening
duration.
Saab 9000
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6 Technical data
Summary of LH components
To facilitate the handling of LH control modules, we
have prepared a summary of all existing units.
The summary consists of two tables: Table A for
cars
with
a catalytic converter and Table Bfor those
without.
Table A. Specification, LH fuel injection system
Cars equipped with a catalytic converter
Version Model
1
Engine LH
year Fuel pressure Mass air flow
regulator sensor Injector Control module
Bar Bosch SAAB Bosch SAAB Bosch SAAB Bosch SAAB
9000iM, iA 86-87 8202
2.2
3.0 258 7580160
1
)-009
9390428
-711
7560162
-532 9389768
" 88 " 2.4 " -256 7564123 7538663 " " -552 7538671
89 " " - " -"- -565 7487143
" 90 " " " " " " " " " -584 9119470
" " " " " "
" " " "
-581 9119496
" " 8234 2.4.1 " " - - 9113838 -002 9113721 -579 9113804
2.4.2
II II II II II II II
-905 7872237
ti ti II ti ti
-905 7872237
8202 2.4 -"- - -711 7560162 -584 9119470
--
-+- ---- - ---- _ __ - --- ---- - -------- -- ------ ---- ------ --- --- -----
9000 86 8202 2.2 2.5 -257 !9375643 -712 7560170 -531 9389750
;
-- ---------- --- -- -- -- --!--- ------- ---•--------- --- ----· --- ---------
9000 LA
B) " - - "
-11- -"- -"- - - " - - "
-539 9391178
9000 LA 88
1 -"- -"-
1
-"-
-255 7564131 -"- ·
11
- -"-
-"- " "
7486905 7538655
-
11-
-+--_,,_---- 8978355
II
-586 9119488
-583 8787079
9000 LM, LA 91 " " " "
11
- - " " "
-940 9126194
II II
8234 2.4.2 3,0 -524 9131061 •009 8857153 -908 8857187
9000
11 11 11 " - - " " 11 11
1
11
-910 7872260
II
8202 -704 7486905 -013 7538655 -712 7560170 9126202
2.4 3.0 -706 -011 -711 -584 9119470
" " 8234 2.4.2 " " " -019 9113838 -002 9113721 -905 7872237
II
s202 -940
9000
" " " " "
11
" " " "
-941 9126202
9000 LM, LA
11
8234 2.4.2 3.0 -524 9131061 -012 9113846 -009 8857153 -908 8857187
II II II
-910 7872260
man+aut TCS
9000iM, iA 93 8202 2.4
II
-706 7486921 7538663 7560162 -584 9119470
2.4.2
---- -
---- - - -- ··-·-
- ------ · -
-
--·--· -·
- -- -
-"- -706 7486921 -019 9113838 -002 9113721 -905 7872237
9000iM, iA 93 *) " " -706 7486921 -019 9113838 -002 9113721 -960 4300224
9000L 90-9-3 8202 2.4 " -706 7486921 -013 7538655 -712 7560170 -940 9126194
137kW) ---- ------- - -
9000L 93 8202 - - 2.5 -704 7486905 -013 7538655 -712 7560170 -940 9126194
9000L 93 8202 " " -704 7486905 -013 7538655 -712 -941 9126202
Catalytic converter repositioned more forward US, SE
1, alum. 100°
2/4.7, plastic, 120°
2/4.7, plastic, 155°
2/6.4, plastic, 155°
Control
Control
Air filter in engine bay
Air filter in wheel housing
(US/Cal)
Control
L Turbo engine
i fuel injection engine
M manual gearbox
A automatic transmission
Saab 9000
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