KMS UEGO CAN Specification sheet

kms.vankronenburg.nl
UEGO CAN controller
• Manual for installation and setup
• Handleiding voor installatie en setup
• Anleitung für Installation und Setup
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UEGO CAN controller
Part nr: 01-01-01-0010
Technical specifications and installa-
tion manual
kms.vankronenburg.nl
EN—NL—DE
EN

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KMS UEGO CAN controller
Part nr: 01-01-01-0010 4
kms.vankronenburg.nl
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This document contains detailed information about the KMS UEGO CAN
controller. Additional information, user manuals, wiring examples ands
software can be found on our website: kms.vankronenburg.nl or on the
software CD included with the ECU.
1. Package contents
• UEGO CAN controller (84mm long x 35mm width x 24mm height incl.
connector
• UEGO CAN controller wiring loom (with connectors attached)
• CAN extension hub 2m
• Adapter (for easy ground fitting)
• Welding bung (stainless steel, M18x1,5)
• Instruction manual
• Wide-band lambda sensor (LSU 4.9)
• Contra connector (to attach the 3-pole connector)
UEGO CAN controller wiring loom CAN extension hub (2 metres)

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KMS UEGO CAN controller
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2. Installation of the KMS UEGO CAN controller
The KMS UEGO CAN controller is splash waterproof. However, it is best to
place it in a dry place where temperatures don’t exceed 65 °C.
Warning: do not place the UEGO CAN controller and it’s wires nearby any
‘high powered’ cables such as sparkplug leads, as it can cause electrical
interference resulting in malfunction.
Included with the KMS UEGO CAN controller is a wiring loom which consists
Lambda connector ECU connection CAN-bus
Main connector Ground connector

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2.1. Main 12-pole connector
Connect to UEGO CAN controller. Pin functions are as following:
2.2. Single pole connector for heater ground
Connect to chassis ground.
2.3. 3-pole (superseal) connector for power supply and signal
This supplies power and ground to the CAN controller as well as signal output from
controller to ECU. Connect as following:
Pin Nr. KMS Colour Function Details
1 Red 12V supply
2 Green Can Low (-)
3 Black Heater ground
4 Blue Ipr Sensor calibration
5 White H- Sensor heater ground
6 Red Ip Sensor Signal
7 Black Ground
8 White Can High (+)
9 White Sensor signal Analog signal output (type C)
10 Black Un Sensor reference voltage supply
11 Grey H+ Sensor heater voltage supply
12 Yellow Vm Sensor reference ground
Connector Wire Function MD35 pin nr MP25 pin nr
Pin 1 Red + 12V 35: 12V Aux sup- 13: 12V Lambda sup-
Pin 2 White Signal out 31: Lambda
signal 1
32: Lambda sig-
nal 2
1: Lambda signal
4: Analog aux input
Pin 3 Black Ground 23: ECU ground 25: ECU ground

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KMS UEGO CAN controller
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2.4. 6-pole connector for lambda sensor
Connect to wide-band lambda sensor.
2.5. 4-pole CAN connector
For connection to CAN display, ECU CAN input, etc. Pin functions are as
following:
Male CAN connector front: Female CAN connector front:
The CAN connection hub included in the package can be used to connect
the KMS UEGO CAN controller to the CAN bus. For every CAN device that’s
connected to the CAN bus, a CAN connection hub will be needed.
Pin nr Colour Function
1Red 12V supply
2Black Ground
3White Can High (+)
4Green Can Low (-)

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KMS UEGO CAN controller
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3. Wiring of the CAN bus
The KMS UEGO CAN controller can communicate via CAN communication through
the CAN bus (grey wire) which consists of two pair of twisted wires (green and
white, red and black). Up to 10 CAN devices may be connected to the CAN bus.
These devices must be placed within 0,5m of the CAN bus.
If the CAN Bus is connected to the KMS MP25, MA25(M), IA23 or FA23 ECU (using the
serial to CAN converter) or the KMS MD35 ECU, it is not necessary to use a CAN ter-
minating resistor plug. The KMS MD35 ECU and serial to CAN converter already have
a terminating resistor. When using the UEGO CAN controller separately on a
standalone CAN bus (for example in combination with a KMS CAN display), it is nec-
essary to use a CAN terminating resistor plug on one end of the CAN bus. Below, a
drawing is shown of the correct CAN Bus wiring, including a KMS ECU. The following
page contains a drawing showing the correct wiring of the CAN bus excluding a KMS
ECU.

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KMS UEGO CAN controller
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4. Lambda sensor specifications
The lambda sensor used for the KMS UEGO CAN controller is a 6 wire LSU4.9 wide-
band Lambda sensor. This sensor has the following specifications:
• Thread: M18x1,5
• Spanner size: 22 Hexagon
• Maximum continuous operating temperature: 930 °C
• Maximum temperature: 1030 °C (maximum 10 minutes)
• Mounting torque: 60 Nm max
• Sensor warm-up will take about 20 seconds. Accurate measure-
ment is possible when exhaust gas temperature is at working
temperature.
• Sensor lifetimes differ for every application, but will dramatically
decrease by the following factors:
• Leaded fuel
• Contaminants such as silicon, lead, oil, etc. (use sensor
-friendly sealants)
• Exposure to exhaust fumes without any heating control active
• Incorrect placement in the exhaust that can overheat
the sensor (for correct placement see page 5)

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Warning: The Lambda sensors are factory calibrated with a trim-
ming resistor placed in the sensor connector, so the connector must
not be cut off.
5. Installation of the lambda sensor
The Lambda sensor should be fitted to the exhaust system with the sensor
tip in the exhaust gas flow. When fitting the Lambda sensor, the following
factors need to be taken into account:
• Place the sensor at least 1 meter fron the open end of the exhaust
system to avoid incorrect readings due to air from the outside.
• If possible, do not place the sensor near exhaust slip joints. It is pos-
sible for some applications to allow air to enter resulting in incorrect
readings.
• Installation angle should be inclined at least 10° towards horizontal
(electrical connection upwards). Thus preventing the collection of
liquids between sensor housing and sensor element during the cold
start phase. See figure below.

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• For hot applications (temperature of hexagon above 500°C *) the
thread boss should be at least 13 mm or longer to avoid overheating
of the protection tube welding and to cool down the sensor hexagon.
The recommended material for the thread boss in the exhaust pipe is
temperature resistant stainless steel. See figure below for dimen-
sions of the thread boss.

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6. Software settings
Attention: After connecting the UEGO CAN controller, the lambda control settings
must be set up correctly. When using the UEGO CAN controller to operate by CAN
communication, you must set it to KMS UEGO controller CAN. When operating by
serial (RS232) communication, you must set the controller type to KMS UEGO con-
troller C-type. See appendix for signal voltages.
For adjustment of the lambda controller type, open the KMS Motormanagement
software, then go to options (F4)  Lambda control  Lambda controller type 
KMS UEGO controller CAN. See image below.

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Using two or more CAN controller on the CAN bus, means that the CAN controllers
must be defined in the software. Therefore it may be needed to update the firm-
ware. Please contact us for the latest firmware update and procedures. After up-
dating the firmware set the lambda controller to the right type, as described be-
fore. Next, switch the vehicle’s ignition off and on. Then go to options (F4)  CAN
setting  Search for devices. After the devices are found, you can choose the func-
tions (lambda 1, lambda 2, etc) for the different CAN devices. See image below for
an example.

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KMS UEGO CAN controller
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7. AFR ratio
Lambda is a measure of the Air to Fuel Ratio (AFR) that is independent of the type
of fuel being used. The lambda value of the new UEGO CAN controller can vary be-
tween minimum 0,65 and maximum 1,5 lambda. This means the Air to Fuel ratio
for petrol lies between 9,5 and 22,1. The following table shows the AFR ratio’s for
different fuels compared to the lambda value:
Lambda Air to fuel ratio
Petrol Diesel LPG E85 Methanol
0.65 9.6 9.5 10.1 6.3 4.2
0.70 10.3 10.2 10.9 6.8 4.5
0.75 11.0 10.9 11.6 7.3 4.8
0.80 11.8 11.6 12.4 7.8 5.1
0.85 12.5 12.3 13.2 8.3 5.4
0.90 13.2 13.1 14.0 8.8 5.8
0.95 14.0 13.8 14.7 9.3 6.1
1.00 14.7 14.5 15.5 9.8 6.4
1.05 15.4 15.2 16.3 10.3 6.7
1.10 16.2 16.0 17.1 10.8 7.0
1.15 16.9 16.7 17.8 11.2 7.4
1.20 17.6 17.4 18.6 11.7 7.7
1.25 18.4 18.1 19.4 12.2 8.0
1.30 19.1 18.9 20.2 12.7 8.3
1.35 19.8 19.6 20.9 13.2 8.6
1.40 20.6 20.3 21.7 13.7 9.0
1.45 21.3 21.0 22.5 14.2 9.3
1.50 22.1 21.8 23.3 14.7 9.6
1.55 22.8 22.5 24.0 15.1 9.9
1.60 23.5 23.2 24.8 15.6 10.2

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KMS UEGO CAN controller
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8. Fault tracing
The UEGO CAN controller as a LED light for simple fault tracing. The function of the
LED light is described below:
LED function Problem
LED continuously on - No problem, controller is ok and ready to be
used.
1 puls - Heating of the sensor, controller is ok but cannot
be used until heating is finished.
4 pulses - Sensor short to 12 volt.
5 pulses - Sensor not connected.
6 pulses - Heater ground not connected (pin 3 of the 12
pole connector).

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Appendix 1 of 2: Signal voltages for serial communication

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KMS UEGO CAN controller
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Appendix 2 of 2: Signal voltages for serial communication

UEGO CAN controller
Onderdeel nr: 01-01-01-0010
Technische specificaties en
kms.vankronenburg.nl
EN—NL—DE
NL

kms.vankronenburg.nl
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KMS UEGO CAN controller
Onderdeel nr: 01-01-01-0010 19
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Dit document bevat gedetailleerde informatie over de KMS UEGO CAN control-
ler. Overige informatie, handleidingen, kabelboomschema’s en software kan
worden gevonden op onze website: kms.vankronenburg.nl of op de software CD
bijgeleverd bij deze ECU.
1. Inhoud van de kit
• UEGO CAN controller (84mm lang x 35mm breed x 24mm hoog incl.
Stekker)
• UEGO CAN controller draadboom (met stekkers bevestigd)
• CAN extensie kabel 2m
• Adapter (voor vereenvoudigde massaverbinding)
• Las moet (roestvast staal, M18x1,5)
• Installatie handleiding
• Breedband lambda sensor (LSU 4.9)
• Contra stekker (om de 3-polige stekker aan te sluiten)
UEGO CAN controller draadboom CAN extensie kabel (2 meter)

kms.vankronenburg.nl
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2. Installatie van de KMS UEGO CAN controller
De KMS UEGO CAN controller is spatwaterbestendig. Echter het beste is om de con-
troller op een droge plek te plaatsen waar de temperatuur niet boven de 65 °C
komt.
Let op: plaats de UEGO CAN controller en kabels uit de buurt van ‘high powered’
kabels (bougiekabels, etc) om storingen te voorkomen.
Bijgevoegd bij de KMS UEGO CAN controller is een kabelboom welke bestaat uit een
hoofdstekker met daaraan 4 kabels met stekkers. De identificatie van deze stekkers
is als volgt:
Lambda connector ECU connection CAN-bus
Main connector Ground connector