Electronic Engine Controls (Digifant II)

Electronic Engine Controls (Digifant II)
1987-1988 Jetta
1989 Jetta, German Production (up to VIN 1G KW400000)
1989 Golf, Mexico Production

Tracks 1-12:

Tracks 13-22:

Tracks 23-32:

Tracks 33-40:

Fuse/Relay Locations:

Description Current track
Air flow sensor potentiometer 18, 19
Alternator 1,2
Battery 3
Digifant control unit 13-21
Digifant control unit 23-30
Digifant control unit relay 29-31
ECS-Malfunction indicator light and switch 21, 22
Eng. coolant temp. sensor 17
Fuel enrichment switch 14
Fuel gauge sending unit 36
Fuel pump 38
Fuel pump relay 37
Hall generator 13-15
Idle speed stabilizer valve 26,27
Idle switch 16
Ignition coil 9-11
Ignition control unit 8-12
Ignition distributor 10-12
Injector, cyl. 1 28
Injector, cyl. 2 30
Injector, cyl. 3 31
Injector, cyl. 4 32
Intake air temp. sensor (in air flow sensor housing) 18-19
Knock sensor 20,21
Oxygen sensor 24,25
Spark plug connectors 10-12
Spark plugs 10-12
Starter 6,7
Transfer fuel pump 37
Voltage regulator 1,2

Wire connectors
T - wire junction, behind fuse/relay panel
T1 - single in engine compartment, right
T1a - single behind relay panel plate
T1b - single behind relay panel plate
T1g - Wire connector, single behind relay panel plate
T2b - Wire connector, double in luggage compartment
T2m - double in plenum chamber, left
T2x - double near intake manifold
T2y - double near intake manifold
T2z - double, in plenum chamber
T3 - 3 point near ignition distributor
T3 - 3 point in plenum chamber, left
T32 - 32-point behind dash

Ground corrections
1 - ground strap, battery to body
17 - intake manifold
18 - on engine block
30 - near fuse/relay panel
80 - -1- in instrument panel wiring harness
81 - in instrument panel wiring harness
82 - -1- in wiring harness, front left

Welded wiring connections
G3 - (+) in fuel injector wiring harness
G4 - in fuel injector wiring harness
94 - in Digifant wiring harness