Electronic Engine Controls (From July 1987)

Electronic engine controls - Cabriolet, July 1987-1989

Diagrams By Track Number

Tracks 1-14:

Tracks 15-28:

Tracks 29-42:

Tracks 43-56:

Fuse & Relay Panel:

Description Current Track
2-way idle speed boost valve 18
Alternator 1-3
Auxiliary air regulator 46
Battery 5
Cold start enrichment relay 31-35
Cold start enrichment vacuum switch 33
Cold start valve 33
Control pressure regulator 44
Fuel enrichment switch 29
Fuel gauge sending unit 48
Fuel injection power supply relay 23-27
Fuel pump 49
Fuel pump relay 47
Hall generator 9-11
Hot pulse relay 37,38
Idle boost control unit 17,18
Ignition coil 12-14
Ignition control unit 8-13
Ignition distributor 12-14
OXS control unit 24-28
OXS frequency valve 26
OXS thermoswitch 31
Oxygen sensor 26,27
Spark plug connectors 12-14
Spark plugs 12-14
Starter 6,7
Thermo time switch 34-36
Transfer fuel pump 47
Voltage regulator 1-3

Wire connectors
T1a - single, in engine compartment, front left
T1b - single, behind fuse/relay panel
T1d - single, behind fuse/relay panel
T2a - double, near intake manifold
T2b - double, in engine compartment, right
T2c - double, in right plenum, near intake manifold
T2d - double, behind fuse/relay panel
T14 - fourteen-point, on instrument cluster

Ground connections
1 - ground strap, battery to body
3 - ground strap, battery to body
10 - in plenum
15 - on cylinder head
16 - on valve cover
30 - beside fuse/relay panel
90 - in fuel injection wiring harness