Quote:
Originally Posted by TC 1997
I had the check engine light on i took it to autozone and they told me it was my driver side cats. So i purchased a magnaflow bolt on with new bosch 02 sensors and the check engine light came off for about a week and now it only turns on sometimes. but i have never had the fuel pressure tested i will do that.
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Confirm good fuel pressure.
Clear all codes and recheck for what code is coming back.
Pitch the bosh plugs in trash can.
They can lead to and cause cat problems and other problems
And if K & N filter at least clean it and go real easy on the oil.
Also clean or ckeck MAF air flow sensor.
K & N filter oil gets in it and sometimes migrates all of the way to 02 sensors.
That is why I always say pitch them when you are are having problems.