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Evansa22 · 08-28-2023, 02:05 PM

With no cats, shouldn't these codes be turned off? Downstream o2's monitor the cats, which you don't have. As long as the upstream o2 readings are good, would think downstream's should be disabled.

08-28-2023, 02:05 PM	#9
Evansa22 Drives: 2018 HBM ZLE Join Date: Aug 2017 Location: In the garage Posts: 888	With no cats, shouldn't these codes be turned off? Downstream o2's monitor the cats, which you don't have. As long as the upstream o2 readings are good, would think downstream's should be disabled.