The following wiring diagram is for a 1994 Honda Civic with a P28 ECU. It shows the connections between the ECU and the various sensors, actuators, and other components in the engine bay.
[Image of 1994 Civic P28 ECU wiring diagram]
Key:
* A - Alternator
* B - Battery
* C - Distributor
* D - ECM
* E - Fuel injector
* F - Fuel pump
* G - Ground
* H - Ignition coil
* I - Intake air temperature sensor
* J - Knock sensor
* K - MAP sensor
* L - Oxygen sensor
* M - Power steering pump
* N - Starter
* O - Throttle position sensor
* P - Vehicle speed sensor
* Q - Water temperature sensor
Note: This is a simplified wiring diagram and does not show all of the connections in the engine bay. For a more detailed diagram, please refer to the Honda Civic service manual.