Check engine Light
Thread Starter
Melting Slicks
Joined: Jan 2002
Posts: 2,058
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From: FREELAND MI
Senior Member
Cruise-In V Veteran
Check engine Light
Just had my headers and cats ins, and now I have a check engine light on. Is this common? and what to do to get itto shut off?? 
Race Director
Joined: Dec 2004
Posts: 13,760
Likes: 75
From: Haymarket VA
Originally Posted by Vette Freak
Just had my headers and cats ins, and now I have a check engine light on. Is this common? and what to do to get itto shut off??
Check for codes. I got p0134 and p0154 after my install. Several causes of codes include crossing the rear 02 sensor wires, melting wires on the headers, blown #15 fuse if it is the above codes. Mine was the fuse.
Sometimes the cats cause codes to be thrown because they don't warm up as fast as stock cats. The first thing you need to do is find out what codes you throwing. Hold the options button down and press the fuel button 4 times within 10 seconds. this will bring up the codes. Write them down and post them here. Tons of experience and knowledge available. Good Luck!
Pro
Joined: Nov 2003
Posts: 682
Likes: 8
From: Alexandria VA
Here is a link for you. Tells you how to look up your codes, what they mean, and how to delete them. H = History. C = Current. You probably have thrown a Heated Oxygen Sensor code which is making your "check engine" light come on. Its not a big deal just erase the code and the light will turn off. This is pretty common after header instals. It will probably happen again. Just keep erasing it and if you ever get a tune (i.e. LS1edit) have them delete the rear O2's. Goodluck
DIC CODES
