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1991 Pontiac Firebird 5.7L Poor Idle Quality, Hesitation, Surge, Cuts out, Misfire, Poor Fuel Economy
Posted to GM Driveability on 5/9/2006 9 Replies

car came in with rough idle complaint all the time ,cap was lead tracking and cracked, 2 plug wires shorting to grd, 5 of 8 injs very low resistance or shorted, fuel psi 41 idling with fuel reg connected, after all these repairs car still has a lean misfire , ...

9 Replies Received (View Replies)

 
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car Vehicle Data

1991 Pontiac Firebird

VIN [No VIN Available]
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / tuned port injected
Emissionscalif emissions
SymptomsPoor Idle Quality, Hesitation, Surge, Cuts Out, Misfire, Poor Fuel Economy
OccursAlways, Hot, Under Load, on Accel, Idle
Message Closed

car Vehicle Data

1991 Pontiac Firebird

VIN [No VIN Available]
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / tuned port injected
Emissionscalif emissions
SymptomsPoor Idle Quality, Hesitation, Surge, Cuts Out, Misfire, Poor Fuel Economy
OccursAlways, Hot, Under Load, on Accel, Idle