dodge Workshop Repair Guides

Dodge Workshop Service and Repair Manuals

Multiport Fuel Injection Control Relay <--> [Main Relay (Computer/Fuel System)]|Testing and Inspection > < Diagram Information and Instructions|Page 221
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Multiport Fuel Injection Control Relay: Description and Operation

OPERATION

^

When the ignition switch is ON, battery power is supplied to the engine control module, the injectors, the volume air flow sensor, etc.

^

The engine control module energizes the MFI relay coil. Battery power is then supplied back to the engine control module through the MFI relay
contacts.

Multiport Fuel Injection Control Relay <--> [Main Relay (Computer/Fuel System)]|Testing and Inspection > < Diagram Information and Instructions|Page 221