Guys,
Finally set my truck to run SOL on a COS5 tune. AutoVE'd to <=1% change across both VE tables.
STFT are trimming -3% and making me run lean under all closed loop.
I set NBO2s to switch at 450mV across the board.
I don't believe I have an exhaust leak- but will 100% verify in the next few days.
Is this a common issue? Any ideas?