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E88 Extra engine control unit gas motor - Connection

Connection

Controlunit pin

Use Signal type Source/destination

A1 Not used

A2 Not used

A3 Ignition coil control, cylinder 3 Output signal Ignition coil (A3)

A4 Ignition coil control, cylinder 2 Outputsignal

Ignition coil (A2)

A5 Voltage supply to intake airtemperature and flow sensor

+5V, outputsignal

Intake air temperature sensor(T126)

A6 Not used

A7 Not used

A8 Not used

A9 Heating of lambda sensor Digitaloutput signal

Lambda sensor (T137)

A10 Not used

A11 Grounding of control unit Grounding Grounding point (G50.C)

A12 Control of solenoid to injector,cylinder 1

Outputsignal

Injector, cylinder 1 (V164)
http://imgenlarge//b210000/b213300/b213391http://print//09010d2e8077c7ae/

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A13 Not used

A14 Not used

A15 Not used


Ignition coil (A4)


Ignition coil (A1)

A18 Not used

A19 Not used

A20 Control of the wastegate valve. Digitaloutput signal

Solenoid valve for charge airpressure (V109)

A21 Voltage supply, relay, valve,injector

Digitaloutput signal

Relay (R651)

A22 Control of the electricallyoperated wastegate valve


Solenoid valve for charge airpressure (V109)

A23 Not used

A24 Control of solenoid to injector,cylinder 2 Outputsignal Injector, cylinder 2 (V166)

A25 Signal, camshaft positionsensor

Frequency,in

Camshaft position sensor(T135)

A26 Ground, rotational speedsensor

Frequency,in

Rotational speed sensor (T74)

A27 Ignition coil control, cylinder 5. Outputsignal

Ignition coil (A5)

A28 CAN high CAN high Engine control unit (E44)

A29 Not used

A30 Not used

A31 Not used

A32 Ground, camshaft positionsensor

Frequency,in

Camshaft position sensor(T135)

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A33 Rotational speed sensor, signal Frequency,in

Rotational speed sensor (T74)

A34 CAN low CAN low Engine control unit (E44)

A35 Not used

A36 Not used

A37 Not used

A38 Voltage supply to intake airtemperature and flow sensor+12V

+12V Intake air temperature andflow sensor (T126)

A39 Not used

A40 Heating, lambda sensor 1, Digitaloutput signal

Lambda sensor (T137)

A41 Control of actuator, throttle H bridge Actuator (M34)

A42 Voltage supply to actuator forthrottle

A43 Control of actuator, throttle H bridge Actuator (M34)

B1 Not used

B2 Input signal, oil pressuresensor

Analogueinput signal

Connector (C233)

B3 Not used

B4 Not used

B5 Measuring voltage, lambdasensor 1


Lambda sensor 1 (T137)

B6 Voltage supply,temperature/pressure sensor

+5V Sensor for fuel pressure andtemperature, gas engine(T134)

B7 Measuring current, lambdasensor 2



B8 Not used

B9 Voltage supply, valve, injector,relay


Relay (R652)

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B10 Voltage supply to control unit +24V (ME7)

B11 Not used

B12 Ground, control unit Grounding (0

V)

Battery, negative battery

terminal

B13 Not used

B14 Not used

B15 Input signal, pressure sensor Analogueinput signal

Sensor for fuel pressure andtemperature, gas engine(T134)

B16 Current to lambda sensor Analogue

input signal


B17 Input signal, intake airtemperature and flow sensor


Intake air temperature andflow sensor (T126)

B18 Input signal, position butterflyvalve


(M34)

B19 Not used

B20 Voltage supply to the controlunit, terminal 15

+24V Starter lock

B21 Control of voltage supply toexternal relay


Relay (R1003)

B22 Control of solenoid to injector,cylinder 5

Outputsignal


B23 Control of solenoid valve forlow pressure


Solenoid valve for lowpressure (V175)

B24 Not used

B25 Not used

B26 Input signal, sensor for fuelpressure and temperature, gasengine



B27 Not used

B28 Ground, lambda sensor 1 Lambda sensor 1 (T137)

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B29 Ground, intake air temperatureand flow sensor

Grounding (0V)

Intake air temperature andflow sensor (T126)

B30 Ground, sensor positionbutterfly valve

Grounding (0V)

Sensor, position butterflyvalve (M34)

B31 Measuring voltage, lambdasensor 2



B32 Not used

B33 Not used

B34 Measuring current, lambdasensor 1



B35 Current to lambda sensor 1 Analogueinput signal


B36 Voltage supply to sensor,position butterfly valve

Actuator (M34)

B37 Ground, sensor for fuelpressure and temperature, gasengine


B38 Not used

B39 Not used

B40 Control of solenoid to injector,cylinder 3

Outputsignal


B41 Not used

B42 Output signal, pressure valve,gas tank


Relay, pressure valve, gastank (R650)

B43 Ground, engine Grounding (0

V)

(G50.B)

E88

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