oxeclean8

After installing a headerback Berk exhaust with a test pipe, I started getting these two codes and have been tearing my hair out trying to get rid of them. I've tried
*checking the wiring of my secondary O2 sensor to make sure nothing was pinched or broken

*replacing the donut gasket between the header and exhaust

*adding spacers and spark plug defoulers to move the sensor farther away from exhaust gasses

*replacing the O2 sensor with a new Walker unit from AutoZone
all without any success. I saw a couple old threads on here with similar issues but none of them posted any solutions. Anybody on here run into this and found a solution?

Hfreak

You might need a scanner that will give live data to get a view of the voltage to the sensor, should not be too hard to find the issue with the right tools. Good luck.

oxeclean8

Will go ahead and give that a shot, thanks.

Zer0ne

I've read that cheaper O2 sensors arent the greatest. I had a similar CEL with the voltage (can't remember which exactly) after getting my exhaust worked on. I replaced with a new OEM sensor and reset the ECU/CEL and it hasn't returned. Did you reset the ECU/CEL with your new sensor?

oxeclean8