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HELP ME PLEASE!!!

https://forum.2gn.org/viewtopic.php?f=1&t=2983

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HELP ME PLEASE!!!

Posted: Sun Jul 10, 2005 12:08 am
by jtrain
Just got a CEL, code being P0420... catalyst 1/1 efficiency below required level... anyone know what this means??? in idiot terms, of course...

Posted: Sun Jul 10, 2005 2:24 am
by Spork
It's possible the oxygen sensor is going bad. Just a guess. I'm sure someone else will have more details. I'm an audio junkie rather than the grease monkey.

Posted: Sun Jul 10, 2005 5:49 am
by Lonewolf Performance
try resetting your computer. See if it comes back.
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