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2015 Yukon 5.3 p0430 code help!
I have a 2015 Yukon 5.3 with a p0430 code here is the live data for the o2 sensors. Was told by the smog guy who scanned my car for me that it doesn’t look like a bad o2 or cats that’s I might have a wiring issues. Please help- Edward85
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- Forum: Engine & Drivetrain
