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1992 Pontiac Firebird 3.1L No Start, Poor Idle Quality, Misfire
Posted to GM Driveability on 5/20/2003 4 Replies

Engine will start if primed thru vacuum port and will keep running (tho misfiring) if throttle is continuously pumped. Otherwise it dies. No data available from ECM. ECM was changed, still no data. Injector pulse width measures 1.1 ms during cranking -- will n...

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car Vehicle Data

1992 Pontiac Firebird

VIN 1G2FS23TXN
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / sefi
Emissionsfederal
SymptomsNo Start, Poor Idle Quality, Misfire
OccursAlways
Message Closed

car Vehicle Data

1992 Pontiac Firebird

VIN 1G2FS23TXN
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / sefi
Emissionsfederal
SymptomsNo Start, Poor Idle Quality, Misfire
OccursAlways