acura Workshop Repair Guides

Acura (Honda) Workshop Service and Repair Manuals

PGM-FI Main Relay <--> [Main Relay (Computer/Fuel System)]|Testing and Inspection > < Testing For a Short to Ground With a Short Circuit Locator|Page 3516
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PGM-FI Main Relay: Description and Operation

DESCRIPTION AND OPERATION 

The PGM-FI main relay actually contains two individual relays. This relay is located at the left side of the cowl. One relay is energized whenever
the ignition is on which supplies the battery voltage to the ECM (Engine Control Module), power to the fuel injectors, and power for the second
relay. The second relay is energized for two seconds when the ignition is switched on, and when the engine is running, to supply power to the fuel
pump.

PGM-FI Main Relay <--> [Main Relay (Computer/Fuel System)]|Testing and Inspection > < Testing For a Short to Ground With a Short Circuit Locator|Page 3516