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1990 Pontiac Grand Prix LE 3.1L Alternator
Posted to GM Electrical on 1/2/2003 6 Replies

I noticed on the schematic that the 3.1 does not feed the alternator fuse circuit thru the field terminal but rather powers the digital EGR valve and the purge solenoid which are both ground-controlled by the PCM. It seems I should not have .7v on the field ci...

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  Related Documents & Media  1990 Pontiac Grand Prix LE

 
Message Closed w/FIX

car Vehicle Data

1990 Pontiac Grand Prix LE

VIN 1G2WJ14T2L
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
AffectedAlternator
ConditionsNot Charging
Misc.Severely Abused
Message Closed w/FIX

car Vehicle Data

1990 Pontiac Grand Prix LE

VIN 1G2WJ14T2L
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
AffectedAlternator
ConditionsNot Charging
Misc.Severely Abused