ECU Pinout Diagram - 90-94 Pulsar GTi-R SR20DET
| Pin # | Name | Function | Signal Type |
| 2 | Tachometer Signal | Engine Speed Sensor Signal | Speed |
| 4 | Main Relay (Electronic Concentrated Control System) | 12V Switched | Power |
| 6 | Power Ground (Electronic Concentrated Control System) | Chassis Ground | Ground |
| 13 | Power Ground (Electronic Concentrated Control System) | Chassis Ground | Ground |
| 16 | Mass Air Flow Sensor | Mass Air Flow Sensor Signal | Analog |
| 17 | Mass Air Flow Sensor Ground | Chassis Ground | Ground |
| 18 | Engine Coolant Temperature Sensor | Engine Coolant Temperature Sensor Signal | Analog |
| 19 | O2 Sensor Signal | Oxygen Sensor Signal | Analog |
| 20 | Throttle Position Sensor | Throttle Position Sensor Signal | Analog |
| 21 | Sensor Ground | Chassis Ground | Ground |
| 26 | Air Temperature Sensor | Air Temperature Sensor Signal | Analog |
| 27 | Knock Sensor | Knock Sensor Signal | Knock, Audio |
| 29 | Sensor Ground | Chassis Ground | Ground |
| 32 | Vehicle Speed Sensor | Vehicle Speed Sensor Signal | Speed |
| 36 | Ignition Switch | 12V Switched | Power |
| 39 | Power Ground (Electronic Concentrated Control System) | Chassis Ground | Ground |
| 46 | Power Supply (Aux) | 12V Permanent | Power |
| 47 | Power Supply (Engine Control Module) | 12 Switched | Power |
| 48 | Power Ground (Electronic Concentrated Control System) | Chassis Ground | Ground |
| 101 | Injector # 1 | Engine Speed Sensor Signal | Speed |
| 103 | Injector # 3 | Engine Speed Sensor Signal | Speed |
| 107 | Power Ground (Electronic Concentrated Control System) | Chassis Ground | Ground |
| 108 | Power Ground (Electronic Concentrated Control System) | Chassis Ground | Ground |
| 109 | Power Supply (Aux) | 12V Permanent | Power |
| 110 | Injector # 2 | Engine Speed Sensor Signal | Speed |
| 112 | Injector # 4 | Engine Speed Sensor Signal | Speed |
| 116 | Power Ground (Electronic Concentrated Control System) | Chassis Ground | Ground |
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