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hi,
Fitted a new magnaflow catback system about six weeks ago to my 98 Firebird. and changed out the three o2 sensors at the same time. Now I have the SES light on. Had the car scanned and the garage says the new exhaust is causing the problem?????
The exhaust pipes are very black but not wet or oily.
Didn't give me the code just said it was an o2 related one. I thought that as this was a cat-back system it would have zero effect on the sensors. They just said the new exhaust was flowing better than the old one and the lack of back pressure was causing the problem. They checked everything and said there were no other engine management related codes stored and not to worry about it??
Didn't give me the code just said it was an o2 related one. I thought that as this was a cat-back system it would have zero effect on the sensors. They just said the new exhaust was flowing better than the old one and the lack of back pressure was causing the problem. They checked everything and said there were no other engine management related codes stored and not to worry about it??
The catback has zero effect on the sensors: that's bull**** that less backpressure caused the code. Go to Auto Zone, have them read the code for you, and write it down so you can tell everyone what it is. Most likely, an 02 sensor is just bad.
-Eric<br />2002 Navy Blue Camaro...Striped and Stalled. 35th Anniversary SS wheels <br />Best ET: 15.384 @ 88.32 on street tires<br />Project Whitney: Goal, 14.0 1/4 by summer 2008.
I'd put money that one of the sensors is bad or installed incorrectly. I've been told by plently of shops that something else is the reason for the code. When they think you mod your car, then they think thats the problem. I bet they looked over the car and just said, well I bet its the exhaust.
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You probably hooked an upstream O2 in place of your down stream if you bought them all at the same time. Probably just need to switch 2 of the sensors, or you may have bought all upstream, or all downstream.
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