N55 catless dp + inspection

NORAGRETS · 08-14-2014, 06:06 PM

Anyone know how to properly prep the O2 sensor and catalyst monitor to pass inspections?

Catless DP and dont want to swap back to my stock DP just for inspection if there is a way to trick the computer into thinking 02 monitors and catalyst monitors are working properly...

Help!

slow135i · 08-18-2014, 12:16 PM

I have a bms downpipe on my n55 for over 2 months no issues. No cel light or codes. What are you concerned with?

NORAGRETS · 08-19-2014, 12:31 AM

when plugged it 02 monitor and catalyst monitor both read "not ready". If 1 of those 2 monitors can read "ready" ill pass...but that has yet to happen

08-14-2014, 06:06 PM	#1
NORAGRETS Colonel 441 Rep 2,038 Posts Drives: 2017 F80 M3 ZCP BSM 2012 E82 1 Join Date: May 2012 Location: Boston, MA iTrader: (0) Garage List 2017 BMW M3 ZCP LCI [0.00]	N55 catless dp + inspection Anyone know how to properly prep the O2 sensor and catalyst monitor to pass inspections? Catless DP and dont want to swap back to my stock DP just for inspection if there is a way to trick the computer into thinking 02 monitors and catalyst monitors are working properly... Help! __________________ 2017 F80 ZCP BSM - Klein Innovation. ActiveAutowerkes. AR Design. BootMod3 Paul Johnson. EvRw. Project Gamma. RW Carbon. UCP. UUC. Hawk. Dinan. NGK. Macht Schnell. TMS. VR. aFe. RIP - E82 135i - 7/7/2021
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08-18-2014, 12:16 PM	#2
slow135i Private 6 Rep 75 Posts Drives: 2011 m sport Join Date: Jun 2014 Location: phoenix iTrader: (0)	I have a bms downpipe on my n55 for over 2 months no issues. No cel light or codes. What are you concerned with?
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08-19-2014, 12:31 AM	#3
NORAGRETS Colonel 441 Rep 2,038 Posts Drives: 2017 F80 M3 ZCP BSM 2012 E82 1 Join Date: May 2012 Location: Boston, MA iTrader: (0) Garage List 2017 BMW M3 ZCP LCI [0.00]	when plugged it 02 monitor and catalyst monitor both read "not ready". If 1 of those 2 monitors can read "ready" ill pass...but that has yet to happen __________________ 2017 F80 ZCP BSM - Klein Innovation. ActiveAutowerkes. AR Design. BootMod3 Paul Johnson. EvRw. Project Gamma. RW Carbon. UCP. UUC. Hawk. Dinan. NGK. Macht Schnell. TMS. VR. aFe. RIP - E82 135i - 7/7/2021
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