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1999 Chevrolet Lumina 3.1L MIL Lamp on
Posted to GM Driveability on 2/26/2004 11 Replies

Vehicle has been here a few times for check engine light. First time was catalyst code P0420. That is when the convertor and O2 sensors and tuneup was done. Vehicle left and was fine for awhile, brought back for light on again, this time it was a random misfir...

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  Related Documents & Media  1999 Chevrolet Lumina

 
Message Closed w/FIX

car Vehicle Data

1999 Chevrolet Lumina

VIN 2G1W152M1X
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
Message Closed w/FIX

car Vehicle Data

1999 Chevrolet Lumina

VIN 2G1W152M1X
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)