Codes after DP Fix removed, inspection passed - BMW 3-Series (E90 E92) Forum

badfish718 · 12-06-2012, 04:35 AM

Ok, so installed the BMS DP Fix went through the drive cycle and passed inspection no problem. So I removed the Fix and now I keep getting P2C7F and P2C6A randomly after driving for 30+ minutes or anytime I reset learning.

I can't find much on the topic so maybe somebody can help me out. Is this just me putting the yellow wires back into the wrong position on the ECU? I went through it pretty carefully and don't think I messed up, but being a Cobb guy I am not too comfortable digging into the ECU to begin with...

badfish718 · 12-06-2012, 11:54 PM

Bump, could use any advice!

lfelunden · 12-07-2012, 07:38 AM

How about using their guide ?

Here: http://burgertuning.com/instructions/BMSdownpipefix.pdf

pHo_e92 · 12-07-2012, 08:40 AM

what does the code description say? what map are you running?

badfish718 · 12-07-2012, 10:57 AM

Thanks, I obviously went through the guide but there is nothing about throwing codes after removing the standalone fix.

Code descriptions have to do with Lambda probe

"Lambda probe after catalytic converter 2, trimming control"

I was running Stage 2+ v402, but after passing the only station that sells E85 I couldn't help myself and switched over the the E30 map and I haven't thrown a CEL since, but it's only been around 50 miles.

I'm kind of just wondering if anyone else has come across issues after removing the DP Fix unit because I was running fine beforehand and I installed it correctly since I did pass inspection.

Appreciate the help!

ksalih · 12-07-2012, 11:13 AM

Quote:

Originally Posted by badfish718

Thanks, I obviously went through the guide but there is nothing about throwing codes after removing the standalone fix.

Code descriptions have to do with Lambda probe

"Lambda probe after catalytic converter 2, trimming control"

I was running Stage 2+ v402, but after passing the only station that sells E85 I couldn't help myself and switched over the the E30 map and I haven't thrown a CEL since, but it's only been around 50 miles.

I'm kind of just wondering if anyone else has come across issues after removing the DP Fix unit because I was running fine beforehand and I installed it correctly since I did pass inspection.

Appreciate the help!

I'm a bit confused , why did you remove the DPfix after inspection...keep it on?

vasillalov · 12-07-2012, 11:34 AM

Quote:

Originally Posted by ksalih

I'm a bit confused , why did you remove the DPfix after inspection...keep it on?

The DPFix will throw off the ECU's long-term Lambda adaptations. Remove it when you don't need to pass inspection.

badfish718 · 12-07-2012, 11:37 AM

Quote:

Originally Posted by vasillalov

The DPFix will throw off the ECU's long-term Lambda adaptations. Remove it when you don't need to pass inspection.

Yea everything I've read said to remove it once inspection is finished.

benzy89 · 12-07-2012, 01:06 PM

Quote:

Originally Posted by badfish718

Yea everything I've read said to remove it once inspection is finished.

Have you switched back to Stage 2+ since the codes went away? Just wondering if I'll get this headache when I need to pass the OBD scan -- Thinking I'll just completely uninstall the COBB

badfish718 · 12-07-2012, 01:15 PM

Quote:

Originally Posted by benzy89

Have you switched back to Stage 2+ since the codes went away? Just wondering if I'll get this headache when I need to pass the OBD scan -- Thinking I'll just completely uninstall the COBB

No, but I can try later when I drive out to BK.

Is it ok to run an E30 blend without running the E30 map? I assume it is but you would know better than I.

benzy89 · 12-07-2012, 01:21 PM

Quote:

Originally Posted by badfish718

Is it ok to run an E30 blend without running the E30 map? I assume it is but you would know better than I.

If you're running the E30 Map with the correct amount of Ethanol, then run that map just because the fueling table is more appropriate since the regular pump gas maps won't pump enough gas for your ethanol-blend.

Just try to run the tank really low, pump in more 93 & then switch back to Stage 2+

badfish718 · 12-07-2012, 01:38 PM

Quote:

Originally Posted by benzy89

If you're running the E30 Map with the correct amount of Ethanol, then run that map just because the fueling table is more appropriate since the regular pump gas maps won't pump enough gas for your ethanol-blend.

Just try to run the tank really low, pump in more 93 & then switch back to Stage 2+

OK, yea that actually makes sense.

I'm at 3/4 tank now, I'm sure my gas light will come on within an hour of driving lol

Also I still have the DP Fix if anyone needs, going to list it in a few days but priority to anyone who is taking the time to read this thread trying to help me out lol...pm if interested

benzy89 · 12-07-2012, 02:21 PM

Quote:

Originally Posted by badfish718

Also I still have the DP Fix if anyone needs, going to list it in a few days but priority to anyone who is taking the time to read this thread trying to help me out lol...pm if interested

I can't PM (coming off a ban), but I'm gonna need one eventually -- How much were you looking for? I might be able to pick it up since I'm nearby, 973

badfish718 · 12-07-2012, 02:27 PM

$75 shipped, if you come pick it up $70

vasillalov · 12-07-2012, 11:30 PM

Quote:

Originally Posted by badfish718

No, but I can try later

This is the problem here! Cobb provides O2 code suppression ONLY for their S2+ maps. If you want to use a lower map and still have O2 code suppression, you'll need to use ATR and quickly generate your own map.

skatenc123 · 12-15-2012, 12:56 AM

i just uninstalled bms dp fix and am getting the same 2 codes as you. on cobb stg2+ map. has me wondering if maybe we switched the 2 yellow wires when putting them back in.

Ænema · 12-15-2012, 01:00 AM

Quote:

Originally Posted by skatenc123

i just uninstalled bms dp fix and am getting the same 2 codes as you. on cobb stg2+ map. has me wondering if maybe we switched the 2 yellow wires when putting them back in.

First thing i would try is to reset the ECU and then the clear DTCs and see if they come back. If so, then the yellow wires are the next logical step.

skatenc123 · 12-15-2012, 01:34 AM

yea i need to drive around to see if they come back. i just wish i new for sure what the yellow wires did. if i figure it out ill report back.

nitehawk · 12-15-2012, 01:53 AM

Quote:

Originally Posted by vasillalov

This is the problem here! Cobb provides O2 code suppression ONLY for their S2+ maps. If you want to use a lower map and still have O2 code suppression, you'll need to use ATR and quickly generate your own map.

Bingo! Btw, I've left in my DPfix for over a year running cobb s2+ no issues with afr whatsoever.

vasillalov · 12-15-2012, 11:29 AM

Quote:

Originally Posted by nitehawk

Bingo! Btw, I've left in my DPfix for over a year running cobb s2+ no issues with afr whatsoever.

Trust me, it's there....

james008 · 12-16-2012, 09:30 AM

I bought a new car with the DP fix already installed. I am not running any tunes just cattless and the DP fix. Do I need to remove the DP fix? And only install when I need to pass inspoection? or is this only for people running tunes? I am not throwing any codes right now...

Josh1a1h · 12-16-2012, 09:39 AM

Can you fit the DP fix without removing the DPs? It is tight down there

12-06-2012, 04:35 AM	#1
badfish718 Private Drives: 07 E92 Montego Join Date: Nov 2011 Location: 718 Posts: 94 iTrader: (2)	Codes after DP Fix removed, inspection passed Ok, so installed the BMS DP Fix went through the drive cycle and passed inspection no problem. So I removed the Fix and now I keep getting P2C7F and P2C6A randomly after driving for 30+ minutes or anytime I reset learning. I can't find much on the topic so maybe somebody can help me out. Is this just me putting the yellow wires back into the wrong position on the ECU? I went through it pretty carefully and don't think I messed up, but being a Cobb guy I am not too comfortable digging into the ECU to begin with... __________________ NYC - '07 E92 335i MONTEGOBLAU COBB Stage 2+, BMS DCI, VRSF DP + FMIC AG M355 19"
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12-06-2012, 11:54 PM	#2
badfish718 Private Drives: 07 E92 Montego Join Date: Nov 2011 Location: 718 Posts: 94 iTrader: (2)	Bump, could use any advice! __________________ NYC - '07 E92 335i MONTEGOBLAU COBB Stage 2+, BMS DCI, VRSF DP + FMIC AG M355 19"

12-07-2012, 07:38 AM	#3
lfelunden Private Drives: Alpina B3 Biturbo Join Date: Aug 2011 Location: German Autobahn Posts: 95 iTrader: (0) Garage List 2010 Alpina B3 Biturbo [5.00] 2009 Alpina B5S [5.00]	How about using their guide ? Here: http://burgertuning.com/instructions/BMSdownpipefix.pdf __________________ Alpina B5S doing 330kmh/205mph for more than 1 minute: http://www.youtube.com/watch?v=hGizo...9gVs9cAUP05Zk=

12-07-2012, 08:40 AM	#4
pHo_e92 Captain Drives: SGM e92 Join Date: Jan 2011 Location: 905 Posts: 858 iTrader: (4) Garage List 2008 BMW 335i [3.63] 2000 BMW 323i [3.00] 1997 Honda Civic HB [5.00] 2007 BMW X5 4.8 [5.00]	what does the code description say? what map are you running? __________________ 08 335i \| Space Gray \| Burl Walnut Wood Trim \| Sport pkg \| Premium Pkg \| LOGIC7 \| Navi \| Comfort Access \| COBB \| Injen DCI \| Active Autowerke \| Sonic Tuning \| E92 Lighting \| ER \| HKS \| BMS \| Ground Control \| Vortex Tuning \|

12-07-2012, 10:57 AM	#5
badfish718 Private Drives: 07 E92 Montego Join Date: Nov 2011 Location: 718 Posts: 94 iTrader: (2)	Thanks, I obviously went through the guide but there is nothing about throwing codes after removing the standalone fix. Code descriptions have to do with Lambda probe "Lambda probe after catalytic converter 2, trimming control" I was running Stage 2+ v402, but after passing the only station that sells E85 I couldn't help myself and switched over the the E30 map and I haven't thrown a CEL since, but it's only been around 50 miles. I'm kind of just wondering if anyone else has come across issues after removing the DP Fix unit because I was running fine beforehand and I installed it correctly since I did pass inspection. Appreciate the help! __________________ NYC - '07 E92 335i MONTEGOBLAU COBB Stage 2+, BMS DCI, VRSF DP + FMIC AG M355 19"

12-07-2012, 02:27 PM	#14
badfish718 Private Drives: 07 E92 Montego Join Date: Nov 2011 Location: 718 Posts: 94 iTrader: (2)	$75 shipped, if you come pick it up $70 __________________ NYC - '07 E92 335i MONTEGOBLAU COBB Stage 2+, BMS DCI, VRSF DP + FMIC AG M355 19"

12-15-2012, 12:56 AM	#16
skatenc123 Lieutenant Drives: 2007 335i coupe Join Date: Jan 2012 Location: NC Posts: 532 iTrader: (1)	i just uninstalled bms dp fix and am getting the same 2 codes as you. on cobb stg2+ map. has me wondering if maybe we switched the 2 yellow wires when putting them back in.

12-15-2012, 01:34 AM	#18
skatenc123 Lieutenant Drives: 2007 335i coupe Join Date: Jan 2012 Location: NC Posts: 532 iTrader: (1)	yea i need to drive around to see if they come back. i just wish i new for sure what the yellow wires did. if i figure it out ill report back.

12-16-2012, 09:30 AM	#21
james008 First Lieutenant Drives: AW 09 335i Join Date: Jul 2012 Location: Charlotte Posts: 308 iTrader: (2)	I bought a new car with the DP fix already installed. I am not running any tunes just cattless and the DP fix. Do I need to remove the DP fix? And only install when I need to pass inspoection? or is this only for people running tunes? I am not throwing any codes right now... __________________

12-16-2012, 09:39 AM	#22
Josh1a1h Major Drives: SB Pre-LCI 335i Join Date: Aug 2011 Location: North London Posts: 1,404 iTrader: (0)	Can you fit the DP fix without removing the DPs? It is tight down there __________________ JB4, BMS DCI, VRSF DP, H&R/Koni Yellow Dampers. 1M Bumper & Carbon Splitter, LED Angel Eyes w/Full Blackout, M3 Skirts, CSL Boot & Carbon Diffuser,8.5/10.5 x 19" SSR Professor MS1 FOR LED ANGEL EYE RETRO-FITTING IN THE UK, GET IN TOUCH & VISIT THE LINK BELOW. https://www.facebook.com/LiteAngelsE92 .............. http://www.LiteAngels.co.uk

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