BM Stage 1

DarthVaderM4 · 07-07-2019, 10:22 PM

Can anyone tell me why Stage 1 - with aftermarket downpipe- not throwing Check engine light and CAT/Evap/heated o2 sensor/oxygen sensor~ showing NOT READY state. I'm trying to enable all and install OEM Downpipes to pass emissions - not sure where to look. maybe ECU needs to be reprogrammed. Confused.

chmura · 07-08-2019, 11:13 PM

With the tune you can turn off the O2 monitors. Make sure you turn them on with the bootmod. Although I have not tuned my car I remember seeing an option to turn O2 monitoring off.

07-07-2019, 10:22 PM	#1
DarthVaderM4 TwinTurbo 14 Rep 44 Posts Drives: 15 M4 Join Date: May 2019 Location: Killinois iTrader: (0)	BM Stage 1 - Question Can anyone tell me why Stage 1 - with aftermarket downpipe- not throwing Check engine light and CAT/Evap/heated o2 sensor/oxygen sensor~ showing NOT READY state. I'm trying to enable all and install OEM Downpipes to pass emissions - not sure where to look. maybe ECU needs to be reprogrammed. Confused. __________________ '15 M4 - Modified @Instagram https://instagram.com/dailydriventurbo
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07-08-2019, 11:13 PM	#2
chmura Colonel 1558 Rep 2,505 Posts Drives: 2019 M2 Competition Join Date: Aug 2009 Location: Orange County, California iTrader: (1)	With the tune you can turn off the O2 monitors. Make sure you turn them on with the bootmod. Although I have not tuned my car I remember seeing an option to turn O2 monitoring off.
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