MD Emissions

UMich_335i · 12-10-2013, 07:31 PM

I was wondering what others have done with catless DPs and Cobb AP? Do you just have to have your stage 2 tune downloaded to clear the CEL, flash to stage 0 or unmarry? I thought you had to stay in stage 2 to keep the CEL inactive.

Thanks!

RoyalFlush · 12-10-2013, 08:58 PM

Quote:

Originally Posted by UMich_335i

I was wondering what others have done with catless DPs and Cobb AP? Do you just have to have your stage 2 tune downloaded to clear the CEL, flash to stage 0 or unmarry? I thought you had to stay in stage 2 to keep the CEL inactive.

Thanks!

You have to keep the car flashed to prevent the CEL from appearing, but you also have to use a DP fix to get your downpipes in "ready" mode for emissions.

UMich_335i · 12-11-2013, 08:08 AM

Quote:

Originally Posted by RoyalFlush

You have to keep the car flashed to prevent the CEL from appearing, but you also have to use a DP fix to get your downpipes in "ready" mode for emissions.

Would the DP fix be part of the Stage 2+ map settings from Cobb?

RoyalFlush · 12-11-2013, 08:09 AM

Quote:

Originally Posted by UMich_335i

Quote:

Originally Posted by RoyalFlush

You have to keep the car flashed to prevent the CEL from appearing, but you also have to use a DP fix to get your downpipes in "ready" mode for emissions.

Would the DP fix be part of the Stage 2+ map settings from Cobb?

The DP fix is a separate piece from BMS, the link's below.

BMW Downpipe DP Fix by BMS

UMich_335i · 07-22-2014, 06:12 PM

Decided to wing my emissions test today without DP fix to see if it was really needed... Passed without question. I am catless running a Cobb PTF protune (rest of mods in sig). Looks like MD can pass with 1 readiness check failed (I am assuming it did not pass but do not have the scanner to check for sure). Just thought I would share for those of you worrying about emissions checks.

gtaccord · 07-22-2014, 07:39 PM

Nice. I didn't even try without the dp fix the first time around. I guess I will try next time around in 18 months or so.

12-10-2013, 07:31 PM	#1
UMich_335i Lieutenant 25 Rep 414 Posts Drives: 2009 e90 335i Join Date: Aug 2013 Location: Atlanta, GA iTrader: (0) Garage List 2009 BMW 335i [0.00]	MD Emissions I was wondering what others have done with catless DPs and Cobb AP? Do you just have to have your stage 2 tune downloaded to clear the CEL, flash to stage 0 or unmarry? I thought you had to stay in stage 2 to keep the CEL inactive. Thanks! __________________ 2009 e90 335i \| AT \| AG M590 \| Conti DW \| KW V1 \| Lux \| Akebono e50 PTF Protune \| Cobb FMIC \| aFe DCI \| VRSF DPs \| ER CP \| Tial BOV \| Alpina Flash \| Fuel-It Stg1 \| RB PCV \| Cobb Exhaust
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07-22-2014, 06:12 PM	#5
UMich_335i Lieutenant 25 Rep 414 Posts Drives: 2009 e90 335i Join Date: Aug 2013 Location: Atlanta, GA iTrader: (0) Garage List 2009 BMW 335i [0.00]	Decided to wing my emissions test today without DP fix to see if it was really needed... Passed without question. I am catless running a Cobb PTF protune (rest of mods in sig). Looks like MD can pass with 1 readiness check failed (I am assuming it did not pass but do not have the scanner to check for sure). Just thought I would share for those of you worrying about emissions checks. __________________ 2009 e90 335i \| AT \| AG M590 \| Conti DW \| KW V1 \| Lux \| Akebono e50 PTF Protune \| Cobb FMIC \| aFe DCI \| VRSF DPs \| ER CP \| Tial BOV \| Alpina Flash \| Fuel-It Stg1 \| RB PCV \| Cobb Exhaust
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07-22-2014, 07:39 PM	#6
gtaccord Major 56 Rep 1,464 Posts Drives: 2009 BMW 335xi Join Date: Feb 2012 Location: Maryland iTrader: (7) Garage List 2009 BMW 335i xdrive [0.00]	Nice. I didn't even try without the dp fix the first time around. I guess I will try next time around in 18 months or so.
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