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help me pass emisions

Old 08-01-2007, 09:56 PM
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Default help me pass emisions

ever since i did my slp long tuves gmmg catback ive thrown SES light. right onw i'm throwing a code for all oxygen sensors. i dont see how they can be bad because they were fine when on stock exhaust.
how can i get my ses light to come off. i'm 2 months expired plates now

What needs to be done?
Old 08-02-2007, 03:20 AM
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any help will be appreciated
Old 08-02-2007, 04:09 AM
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sound like you have to retune your car since you change the exhaust system
Old 08-02-2007, 10:53 AM
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Originally Posted by 99DWPTA
i'm 2 months expired plates now
ain't no need to hurry up now...

get it tuned to see what's up with the o2's...
Old 08-03-2007, 12:22 AM
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Remember, some O2's use the manifold/header as the ground path for the sensor. Are your headers ceramic coated, or have anything on them that may affect the sensor ground? Just a suggestion.
Old 08-03-2007, 01:11 AM
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Dont feel bad. My cars 6 months overdue. Just got temp tags and have to figure out how to quiet it down. If all your codes are throwin you prob need front O2's. The rears you can tune out or find some sims. Did you get the codes read specifically at like autozone ot did they print the DTC's at the inspection lanes?
Old 08-03-2007, 03:29 AM
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advanced auto code check. . i didnt have any codes untill i put exhaust on. so i dont see why they 02's would go bad
Old 08-03-2007, 03:29 AM
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and yes i have ceramic coated headers
Old 08-03-2007, 03:42 AM
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You can "tune out" the codes


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