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1991 Pontiac Firebird 3.1L Poor Idle Quality, Stall
Posted to GM Driveability on 3/13/2000

This car came to us with a rich mixture always and related codes. Found 2 injectors with low resistance. Replaced parts listed above codes gone car runs vantastic, except at idle in closed loop. o2 readings tend to stay below 500mv. o2 cross counts drop to...

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Message Closed w/FIX

car Vehicle Data

1991 Pontiac Firebird

VIN 1G2FS23T8M
Engine3.1 L / 6 cyl
SymptomsPoor Idle Quality, Stall
OccursHot, Idle
Message Closed w/FIX

car Vehicle Data

1991 Pontiac Firebird

VIN 1G2FS23T8M
Engine3.1 L / 6 cyl
SymptomsPoor Idle Quality, Stall
OccursHot, Idle