I have the Full ZZP exhaust. Mid length Header and Catted downpipe with 2.5 inch Catback. I knew that when i got this installed , it would set a code for the rear o2 sensor and i would have a check engine light. I got some suggestions on how to get the light to go off, and i purchased an o2 spacer to fix the problem . i installed it and the check engine light still wont go off. so the spacer idea failed. I need to know what else i can do to get the light to go off. its just annoying and my inspection is also coming up in a month. i would like to get the light to go out by then. Will the dealership turn off the sensor for me with a TEch OBD2 device or is that against the law for them to do so? if so how do i fix it?
The check engine light may not go off by itself. You may have to have the code cleared after the spacer is installed. You can take your car to most autoparts store and they can read and clear the code.
Or you can disconnect your car battery for an hour and hook it back up.
I just replaced my rear O2 sensor. Had been getting codes for months, P0140. That code is etched in my brain. Sometimes it would stay off for a few hundred miles, other times less than 25 miles. No lights since it was changed last Friday. I'll check for codes on the car when it warms up above single digits...
Driving a 2006 Chile Pepper Red Redline with Comp Package and Stage 2, 110K miles.
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