rock auto
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Public Service Message - AFTERMARKT O2 sensors SUCK!
I have a 2007 Yukon 5.3 that was throwing a P-0420 code indicating that my catalytic converter was bad. After doing some online research, I checked the usual suspects: vacuum leak, MAF, air box issues, and PVC - all were good. I figured that the next best bet was possibly a faulty O2 sensor...- 2Cool2Fool
- Thread
- catalytic converter o2 sensor rock auto
- Replies: 18
- Forum: Engine & Drivetrain
