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1990 Pontiac Grand Prix LE 3.1L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, Poor Fuel Economy
Posted to GM Driveability on 11/15/2006 10 Replies

Hi

I have a problem child. This 3.1 has a terrible idle and will get to the point where it will stall. I have checked the egr valve and even replaced with a known good one. Checked connectors for fuel injectors and they have the correct ohms. Fuel pressure is...

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Message Closed w/FIX

car Vehicle Data

1990 Pontiac Grand Prix LE

VIN 1G2WJ54T5L
Engine3.1 L / 6 cyl / GAS
Trans3-speed Automatic
DeliveryFI
SymptomsExcessive Emissions, Poor Idle Quality, Hesitation, Cuts Out, Stall, Misfire, Poor Fuel Economy
OccursAlways
Message Closed w/FIX

car Vehicle Data

1990 Pontiac Grand Prix LE

VIN 1G2WJ54T5L
Engine3.1 L / 6 cyl / GAS
Trans3-speed Automatic
DeliveryFI
SymptomsExcessive Emissions, Poor Idle Quality, Hesitation, Cuts Out, Stall, Misfire, Poor Fuel Economy
OccursAlways