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1999 Pontiac Montana 3.4L Misfire
Posted to GM Driveability on 7/25/2006 14 Replies

This Van has a misfire almost always while idling, especially in gear. The counter on the scanner shows number 3 missing like crazy. Just off idle and driving is fine, never misses a beat. I have replaced, plugs, wires, coils, module, number 3 injector (Used)....

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  Related Documents & Media  1999 Pontiac Montana

 
Message Closed w/FIX

car Vehicle Data

1999 Pontiac Montana

VIN 1GMDU06E8X
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways, Idle

Trouble Codes

P0102Mass Airflow Sensor Circuit Low Voltage
P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

1999 Pontiac Montana

VIN 1GMDU06E8X
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways, Idle

Trouble Codes

P0102Mass Airflow Sensor Circuit Low Voltage
P0300Multiple Misfire Detected