CEL after installing test pipe.
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From: Phoenix, AZ
CEL after installing test pipe.
I installed CNT resonated test pipes today, and it was fine for about 50 miles then the CEL came on. The CEL wasn't supposed to come on because on the CNT test pipes it has the extenders (Defoulers) for the O2 sensors. Does anyone know how to solve this? Thanks.
Last edited by Yuweezy; Jun 15, 2014 at 12:59 AM.
An uprev tune can shut off the O2 sensor, or you might try stuffing some fine steel wool in to the j bung before reinstalling the sensor and resetting your ECU.
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