Service Field Mode- Expert Help Needed
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Service Field Mode- Expert Help Needed
My 1982 Camaro Crossfire Injection runs bad. Gets too much gas (low milage) and misfires, when accelerating in midrange. No wrong codes. Have changed MAP sensor, ignition module and spark plugs. Spark plugs OK (all brown).
However the car runs OK (thus no mechanical problem)in Service Field Mode, thus with a codereader in the ALDL-connector.
The car runs not better or worse when warm, so it is not the oxygene sensor.
The stored codes does not seem to go away too fast either.
Q: What is disconnected or by-passed in the Field Service Mode??? Expert Help Needed.
(Is this an ignition problem or injection problem). Can it be a vacuum leak, when it is OK in Service Field Mode?
I do have the following spares: ECM boxes (2 but only one original prom, 7-pin module, injectors and intake.
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Crossfire
However the car runs OK (thus no mechanical problem)in Service Field Mode, thus with a codereader in the ALDL-connector.
The car runs not better or worse when warm, so it is not the oxygene sensor.
The stored codes does not seem to go away too fast either.
Q: What is disconnected or by-passed in the Field Service Mode??? Expert Help Needed.
(Is this an ignition problem or injection problem). Can it be a vacuum leak, when it is OK in Service Field Mode?
I do have the following spares: ECM boxes (2 but only one original prom, 7-pin module, injectors and intake.
------------------
Crossfire
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