No SES after header install
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12 Second Club
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Joined: Oct 2007
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From: Dayton, Ohio
No SES after header install Allright, so I finished my header install this week and evrything went pretty smooth. I started the car up (w/ only 1 O2 sensor) and it idled fine and ran good. But to my surprise, no check engine lights have come on. I've been driving it for a few days now and it still hasn't thrown any codes. Any ideas why?
Teching In
Joined: Feb 2008
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I dunno... when I did LTs no light came on either... when I took it to be tuned someone had locked the computer... The only people that could have done that was Chevrolet when I took the car in to replace the cats... that may explain why it continued to run like crap after they replaced the defective cats
.... If you had them replaced under warranty same thing could have happened to you... The tuned out all my o2s to avoid the warranty
.... If you had them replaced under warranty same thing could have happened to you... The tuned out all my o2s to avoid the warranty i clear my light on a regular basis. once every month or so just to check what codes are there and after i clear mine it takes few days of driving before any code shows up. and that is with no rear o2s and no egr or air
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Verdad Gallardo Thread Starter
12 Second Club
iTrader: (12)
Joined: Oct 2007
Posts: 1,340
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From: Dayton, Ohio
Well the bulb isn't burned out, so maybe I'll just give it more time. I planned on just tuning them out anyway but was just curious to why they didn't come on.
