Component Layout

Motronic fuel injection and ignition system, component layout





1 - EVAP solenoid valve I (N 80)
2 - Mass air flow (MAF) sensor (G 70)
before removing ignition must have been switched off for a minimum of 20 seconds
3 - Intake air boot
with connection for idle air control and heater element
4 - CO tap tube
5 - Knock sensor I (G 61)
6 - Motronic engine control module (ECM) (J220)
7 - Throttle body
heated via coolant
8 - Throttle position (TP) sensor (G 69)
9 - Idle speed control (ISC) valve (N 71)
10 - Ignition coil (N 152)
11 - Ignition distributor
with Hall sensor
12 - Temperature sensor
- brown
- for A/C
13 - Engine coolant temperature (ECT) sensor (G 62)
- blue
- 2 pole
14 - Engine coolant temperature (ECT) sensor
- supplies signal to instrument panel temperature gauge
- yellow
- 4 pole
15 - Intake air temperature (IAT) sensor (G 72)
10 Nm (7 ft lb)
16 - Fuel pressure regulator
17 - Engine speed (RPM) sensor (G 28)
18 - Knock sensor II (G 66)
20 Nm (15 ft lb)
19 - Fuel injectors (N 30, N 31, N32, N33, N83, N84)
20 - Carbon canister
mounted below air cleaner
21 - Air cleaner

NOTE:
When repairing a connection to or replacing an engine management system component (i.e. Knock Sensor, Mass Air Flow Sensor, Throttle Position Sensor, etc.), ensure the mating connector terminals are made of the same material and that the terminals are not damaged or corroded.

If the component has gold plated terminals but the mating harness does not, replace the mating harness connector terminals with gold-plated terminals. If the mating harness has gold plated terminals but the component does not, replace the component.