2001 Chevy Camaro computer code

CORYPRINE

MEMBER
2001 CHEVROLET CAMARO
6 CYL
2WD
AUTOMATIC
115,000 MILES

I have had a p0420 code coming on for a few weeks now, I had my mechanic look at it and he replaced the cat, all 3 o2 sensors, oem muffler and sealed an exhaust leak before the cat. It was fine for about a week and now the check engine light comes on every couple days and its giving me the same trouble code on my handheld scan tool. Where do I need to go from here so that I can get the car to pass inspection. It runs fine no trouble at all. Just need to pass the obd II part of the inspection. Help please!

Thursday, December 13th, 2007 AT 7:21 PM

1 Reply

ARTMANG

MEMBER
61 POSTS

I have a 99 v6 camaro and my chek engn light is on too all the time. Most likely ur computer is reading multiple miss fires and sometimes u wont feel those missfire but those cars do it. Those cars r tipical to do multiple missfires, nothing wrong with the car its just the way chevy posisioned the spark plugs that makes these missfires and they always will do m sometimes.U cannot fix that. Just keep up ur ur tune ups and before u get ur car smogged erase the check engine light off with a scanner and get it smogged. Go to autozone and borrow a good scanner they have loaners and read what it tells u. Most likely it will say multiple missfires. Dont worry its ok. Just erase the light and smogg it.

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Friday, December 14th, 2007 AT 10:11 PM