The bank 2 graph is in the picture he said there are 2 fuses under the hood that control the 02 sensors to double check those and he also said to buy gm o2 as the aftermarket ones don’t work on these suv. I will try and get a fuel trim chart.
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
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