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The PGM-FI Main Relay is the component that supplies 12 Volts to the fuel injection system.
Here you'll find the PGM-FI Main Relay's pin out and a simplified wiring diagram.
Contents of this tutorial:
APPLIES TO: This wiring diagram applies to the following vehicles (with and without VTEC):
- 1.5L Honda Civic CX: 1992, 1993, 1994, 1995.
- 1.5L Honda Civic DX: 1992, 1993, 1994, 1995.
- 1.5L Honda Civic EX: 1992, 1993, 1994, 1995.
- 1.5L Honda Civic LX: 1992, 1993, 1994, 1995.
- 1.5L Honda Civic Si: 1992, 1993, 1994, 1995.
- 1.5L Honda Civic VX: 1992, 1993, 1994, 1995.
- 1.5L Honda Civic Del Sol S: 1993, 1994, 1995.
- 1.5L Honda Civic Del Sol Si: 1993, 1994, 1995.
The PGM-FI Main Relay can be easily tested with a multimeter. You can find the tutorial here: How To Test The PGM-FI Main Relay (1992-1995 1.5L Honda Civic).
RELATED WIRING DIAGRAMS:
- Fuel Injector Circuit Wiring Diagram (1992-1995 1.5L Honda Civic).
- Fuel Pump Circuit Wiring Diagram (1992-1995 1.5L Honda Civic).
- Ignition System Wiring Diagram (1992-1995 1.5L Honda Civic).
PGM-FI Main Relay Wiring Diagram
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RELATED WIRING DIAGRAMS:
- Fuel Injector Circuit Wiring Diagram (1992-1995 1.5L Honda Civic).
- Fuel Pump Circuit Wiring Diagram (1992-1995 1.5L Honda Civic).
PGM-FI Main Relay Pin Out
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PGM-FI Main Relay Circuits | ||
---|---|---|
Pin | Wire Color | Description |
1 | Yellow w/ white stripe (YEL/WHT) | 12 Volts Input |
2 | Black (BLK) | Chassis Ground (-) |
3 | Yellow w/ black stripe (YEL/BLK) | 12 Volts Output To ECM |
4 | -- | Empty |
5 | Black w/ yellow stripe (BLK/YEL) | Ignition 12 Volts Input |
6 | Blue w/ white stripe (BLU/WHT) | 12 Volts Input (Ign. Switch Start Position Only) |
7 | Yellow w/ green stripe (YEL/GRN) | 12 Volts Output To Fuel Pump |
8 | Green w/ yellow stripe (GRN/YEL) | Fuel Pump Control Signal |
More 1.5L Honda Civic Tutorials
You can find a complete list of 1.5L Honda Civic tutorials in this index:
Here's a small sample of the tutorials you'll find in the index:
- How To Test The MAP Sensor (1992-1995 1.5L Honda Civic).
- How To Test The Throttle Position Sensor (1992-1995 1.5L Honda Civic).
- How To Test Engine Compression (1992-1995 1.5L Honda Civic).
- How To Test The Fuel Pump In 2 Tests (1992-1995 1.5L Honda Civic).
- How To Test The Igniter, Ignition Coil Accord, Civic, CRV, and Odyssey (at easyautodiagnostics.com).
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