o2 sensor
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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
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O2 sensor issues with LT headers?
I have been running Speed Engineering LT headers with a Blackbear tune for a couple months and a couple days ago the CEL came on. Checked the codes and it's showing issues with the position 1 O2 sensors on both bank 1 and bank 2. I think I'm at around 107k miles and I bought it used at around...- Blackout7c
- Thread
- headers long tube longtube o2 sensor sensors
- Replies: 20
- Forum: Engine & Drivetrain
