check the code before doing anything
Just replaced/cleared codes for the primary and secondary oxygen sensors (bought and installed both new). CEL was off for a week. Now it comes on for a day then turns off, by itself, for a day etc. etc. Have not been able to get to a code reader to check the code being that the light comes on when it wants. Anyone have any experience with this happening when replacing the o2 sensors?
check the code before doing anything
It was happening to me and it was the cat converter.
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