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    Isuzu Trooper 1990 4-cyl petrol Archived Message

    Posted by Shaun Dale on September 29, 2008, 2:20 pm

    Hi,
    Has anyone got a copy of the engine management system circuit diagram for this old lady?
    VIN No:JACUBS17FL77104602, Engine code:RLJ.
    The area I am interested in is fuel pump relay drive wiring. The vehicle starts but dies as soon as you let the key back, if the relay is bridged the engine can be run ok. I have a feeling the relay may not be fed from the ECU but maybe from the alternator warning lamp drive and the vehicle is not charging. I believe the faults are related but would like to check on the diagram before committing to an alternator on an old vehicle that may have another nastier problem.

    Shaun

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