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2002 Buick Century Custom 3.1L Misfire, MIL Lamp on
Posted to GM Driveability on 7/2/2008 15 Replies

i have a random misfire code with mis on #3 cylinder under very light power brake and light cruise. swapped spark plugs, wires, coil, injector. no change. good spark pattern, good injector voltage and amp patterns, weired thing is when you disconnect egr valve...

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  Related Documents & Media  2002 Buick Century Custom

 
Message Closed w/FIX

car Vehicle Data

2002 Buick Century Custom

VIN 2G4WS52362
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SMFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursUnder Load, Intermittently

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2002 Buick Century Custom

VIN 2G4WS52362
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SMFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursUnder Load, Intermittently

Trouble Codes

P0300Multiple Misfire Detected