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Thread: newbie question
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04-27-2006, 06:14 AM #1
newbie question
my ses light came on and the DTC was P0420 (efficiency below threshold/catalyst below threshold) i know dumb question but what does that mean? your help would be greatly appreciated.
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04-27-2006, 08:43 AM #2
your cat or cats might be going bad.
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04-27-2006, 09:52 AM #3
- Join Date
- Jul 2005
- Location
- Jacksonville, FL
- Posts
- 2,723
Most likely your drivers side cat is toast. Lots of threads on this - go to the main forum page and put P0420 into the search - I got 23 hits. Good news is it might be covered under warranty.
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04-27-2006, 11:59 AM #4
thanks for the help guys.
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04-27-2006, 12:56 PM #5
if your cat is bad, it WILL be covered under the federal emmissions law/act, if not covered under warenty
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