2002 Chevy Cavalier dtc p0420

2002 CHEVROLET CAVALIER
68,000 MILES • 6 CYL • FWD • AUTOMATIC
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B1UWZX26
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  • 1 POST
I am getting engine light on and the dtc code p0420 whitch is for catalystic performance below thereshold. what the cause would be? car is not over heating
Feb 18, 2008 at 3:16 PM
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MASTERTECHTIM
  • CERTIFIED EXPERT
  • 4,750 POSTS
your cat converter is not working good enough and will need to be replaced. double check your emissions warranty from the factory to see if it is still covered.
Feb 18, 2008 at 3:18 PM