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2002 Pontiac Firebird 3.8L MIL Lamp on
Posted to GM Driveability on 4/23/2008 10 Replies

CAT went bad in Sept. 07 replaced with after market cat approx. size of honey cone 4" dia. by 10". 2 weeks ago came back with 02 sensor code responsing to slow and it was so we replaced with new.

After replacing with new 02 it lasted 7 days it back again thi...

10 Replies Received (View Replies)

  Related Documents & Media  2002 Pontiac Firebird

 
Message Closed w/Summary

car Vehicle Data

2002 Pontiac Firebird

VIN 2G2FS22K52
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursCruise
Misc.Po420

Trouble Codes

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

car Vehicle Data

2002 Pontiac Firebird

VIN 2G2FS22K52
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursCruise
Misc.Po420

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)