Got a guy wanting to swap a 07 gen 3 5.3 in a s10. I don?t think the standalone harness has rear o2 sensors. Now I?ve found out on my 06 Yukon that if the rear o2 are not plugged in it does a test that swings from super rich to super lean while driving. Is this still a issue or have they found a way to stop this from happening?
I think EFI can disable the cat test but HPT can't. I've just plugged the rear o2 sensor back in to stop it.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
Thanks for the response, was hoping they changed that.
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