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2016 Silverado 5.3 02 Sensor CEL

Chevrojayy97

By Chevrojayy97
in Troubleshooting & Recalls

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Chevrojayy97 Enthusiast

Chevrojayy97

Posted
Posted

Hey guys, first off I’ll give a little background. Bought my truck in April 2016 with 2 Miles on it. Been awesome an no issues thus far. June 2016 I added a cat back exhaust system professionally installed and that’s the only modification I’ve done. So today, December 22, 2017, I hop in the truck to go to lunch, and the CEL comes on. Borrowed a buddy’s code reader and got the following codes. Looks like it’s all 02 sensor related, and the truck has 33,500 Miles as it sits so it’s under warranty. I doubt that it being that large of a time interval that the exhaust has anything to do with it, but I wanted to see if anyone else was experiencing similar issues. Any help is appreciated.

P0138

P013A

P013C

P0158

 

 

Colossus Senior Enthusiast

Colossus

Posted
Posted

nope, haven't seen any posts on here related to that.  get it in to have it fixed. 

Chevrojayy97 Enthusiast

Chevrojayy97

Posted
  • Author
Posted

Yep, took it in and they claimed the aftermarket exhaust changed the flow around the 02 sensor, but replaced it under warranty. I call bs, but at least they didn’t argue. 

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