1G Engine Control Unit Wiring

Courtesy of Colorado DSM. Originally from Dallas Marable

Pin
Connection
Pin
Connection
1
Self-Diagnosis Output
53
EGR Control Solenoid Valve (CA only)
2
Diagnosis/Data transfer select terminal
54
Power transistor for #1 and #4
3
Turbo meter
55
Power transistor for #2 and #3
4
Oxygen Sensor
56
Control relay (Fuel pump control)
5
Power steering oil pressure switch
57
Fuel pressure control valve
6
Idle position switch
58
Coil "A1" for idle speed control servo
7
Air conditioner switch
59
Coil "A2" for idle speed control
8
Intake air temperature sensor
60
No. 3 Injector
9
Detonation sensor
61
No. 4 Injector
10
Air flow Sensor
62
Purge control solenoid valve
11
 Empty
63
Control relay
12
Ignition timing adjustment connector
64
Engine warning light (Malfunction indicator light)
13
Control relay (Fuel pump drive signal)
65
Air conditioner relay
14
Air flow sensor active filter reset
66
Control relay
15
EGR temperature sensor (CA Only)
67
Coil "B1" for idle speed control servo
16
Barometric pressure sensor
68
Coil "B2" for idle speed control servo
17
Sensors ground
101
Ground
18
Vechicle speed sensor
102
Power supply
19
Throttle position sensor
103
Power supply for backup
20
Coolant temperature sensor
104
Inhibitor switch
21
Crank angle sensor (RPM)
105
Wast gate solenoid valve
22
Top dead senter sensor
106
Ground
23
Power supply for sensors (5volts)
107
Power supply
24
Sensors ground
108
"ST" terminal for ignition switch
51
No. 1 Injector
109
Ignition pulse detect
52
No. 2 Injector
110
"1G" terminal for Ignition switch