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1996 Chevrolet Monte Carlo Z34 3.4L Misfire, MIL Lamp on
Posted to GM Driveability on 10/23/2012 5 Replies

This is a dual overhead cam 3.4 engine. Customer complaint was high unstable idle at times and misfiring at idle. High unstable idle was caused by a bad mass air flow sensor. Replaced sensor, unstable idle fixed. Misfire is the real problem. Misfire is only on...

5 Replies Received (View Replies)

  Related Documents & Media  1996 Chevrolet Monte Carlo Z34

 
Message Closed w/Summary

car Vehicle Data

1996 Chevrolet Monte Carlo Z34

VIN 2G1WX12X0T
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursIdle
Misc.P0300

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/Summary

car Vehicle Data

1996 Chevrolet Monte Carlo Z34

VIN 2G1WX12X0T
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursIdle
Misc.P0300

Trouble Codes

P0300Multiple Misfire Detected