Engine Management System

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Part 2 Of 2:

Wiring Diagrams

Part 1 Of 2:

Part 2 Of 2:

Component location


Component I.D. List
A1 Multi-connector under dashboard at left A-post
A3 Multi-connector in relay/fusebox in engine compartment
A9 13-pin connector engine compartment harness - dashboard cable harness
B1 Connector 4-pin passenger compartment harness - fuel tank unit
B3 Connector 4-pin engine compartment harness - front H02S heated oxygen sensor
B9 Connector 4-pin engine compartment harness - rear H02S heated oxygen sensor
B10 3-pin connector, fuel tank pressure sensor
2/23 Fuel pump relay
4/28 Control module AW 30-40/43
2/32 Fuel system main relay
2/46 Relay ignition coils
2/53 Relay, pulsed secondary air injection system (PAIR) pump
4/38 Ignition discharge module (IDM) 1 Motronic
4/39 Ignition discharge module (IDM) 2 Motronic
4/46 Engine control module (ECM)
5/1 Combined instrument panel
6/33-2 Fuel pump
6/54 Pulsed secondary air injection system (PAIR) pump
7/8 A/C Linear pressure sensor
7/16 Engine coolant temperature (ECT) sensor fuel/ignition system
7/17 Mass air flow (MAF) sensor
7/21 Camshaft position (CMP) sensor
7/23 Knock sensor (KS) rear
7/24 Knock sensor (KS) front
7/25 Engine speed (RPM) sensor
7/54 Throttle position (TP) sensor
7/79 Accelerometer
7/84 Fuel tank pressure sensor
7/105 Outside temperature sensor
8/5 Idle air control (IAC) valve
8/6-11 Injectors
8/16 Secondary air injection system solenoid valve
8/18 EVAP valve
8/44 EVAP Canister valve
10/93 Indicator lamp, Check engine
11B/1-18 Fuses in relay/fusebox in engine compartment
17/13 Data link connector DLC
20/3-8 Spark plug with ignition coils
31/1 Ground terminal right front wing
31/2 Ground terminal left front wing
31/32 Ground point on engine (power ground)
31/53 Ground point left side member in engine compartment
31/66 Ground point left seat support
34/18 Terminal block 22-pin: in relay box passenger compartment
34/42 Terminal block 22-pin: In relay/fusebox engine compartment