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Re: Error Code P0420 on 97 Chev Cavalier
Disconnect the battery for 30min and that will "flash" your computer... that should get rid of the error code.. but if you keep gettin the check engine, you need to get that fixed..
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Please don't PM me with your J-body Issues. Post appropriately in the forums,
and I will toss my opinion in your thread if I have anything to help. - Thanks!
2006 Chevrolet Trailblazer
2010 Glastron GT 205XL
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