Possible CEL fix for catless DP's

divisionbell77 · 07-06-2014, 06:27 PM

Quote:

Originally Posted by Jsoboti

Since people are reporting that its not solving the problem, I had an idea... what if you closed the 02 bung with a plug, kept the rear/lower 02 sensor plugged into the harness but did not screw it into the down pipe. If you were able to secure it to the DP somehow it would still read the high temp, and would also read ambient air which should be different than the air being read by the first 02 sensor which is inside the pipe. Could this trick the ECU into thinking there is a cat?

I'd highly be surprised. Professionals(i.e. making cheater plugs, etc) have been trying to get this fixed and all have given up.

e92proper · 07-07-2014, 09:21 PM

So there is no way to run a dp on my 2011 n55 unless I have a tune to eliminate the cel?

Jsoboti · 07-07-2014, 09:33 PM

Quote:

Originally Posted by e92proper

So there is no way to run a dp on my 2011 n55 unless I have a tune to eliminate the cel?

Correct, unless you want to live with the CEL always being on. Which isn't that bad

Silver99GSX · 07-08-2014, 05:18 PM

I tried the (eBay) 02 sensor spacer on my N55 and about 140miles later CEL was on. My buddy and I our going to be trying a few different setups the next few weeks. He has a custom o2 Spacer that he has made and on my buddies N54 has over 1500 miles and no CEL and passes our NY State Emissions testing. So now we will be trying it on my N55. I did the install of my down pipe using once again the eBay 02 sensor spacer. Wish I had called him before I installed mine and to have tried his 02 sensor spacer from the start. I was going to try them O2 Simulator Min Cat CEL Fix, but I see that Jsoboti has had no luck so far. Jsoboti Please keep us updated with the Mini 02 spacers. I will also keep everyone posted with my buddies O2 Sensor Spacers.

Jsoboti · 07-08-2014, 06:25 PM

Quote:

Originally Posted by Silver99GSX

I tried the (eBay) 02 sensor spacer on my N55 and about 140miles later CEL was on. My buddy and I our going to be trying a few different setups the next few weeks. He has a custom o2 Spacer that he has made and on my buddies N54 has over 1500 miles and no CEL and passes our NY State Emissions testing. So now we will be trying it on my N55. I did the install of my down pipe using once again the eBay 02 sensor spacer. Wish I had called him before I installed mine and to have tried his 02 sensor spacer from the start. I was going to try them O2 Simulator Min Cat CEL Fix, but I see that Jsoboti has had no luck so far. Jsoboti Please keep us updated with the Mini 02 spacers. I will also keep everyone posted with my buddies O2 Sensor Spacers.

I tried to get the spacer out today while leaving the DP on the car, no dice, not enough room. Going to remove the DP tomorrow and try again. Unfortunately for me I got one the the VRSF pipes with the wide flange so for me to take the DP on and off I have to remove the engine mount for extra room to muscle the damn clamp on.

I'll keep you guys updated

Jsoboti · 07-09-2014, 01:57 PM

Update: I have the spacer off the top 02 sensor and I now have the 90 degree spacer on the bottom one, cleared the codes with a code scanner and now I'll drive home and see if I get a code. I plan on putting the JB4 back on tomorrow so I'm not sure if I'll put enough miles on it to notice the code or not but we'll see.

Also the vrsf DP was a major PITA toninstall the first time but this time it was a breeze

melloww22 · 07-10-2014, 06:32 PM

Did it worked

Jsoboti · 07-10-2014, 09:04 PM

Quote:

Originally Posted by melloww22

Did it worked

So far so good. Probably 60 or so miles on it

fisc0h · 07-18-2014, 10:02 PM

Quote:

Originally Posted by Jsoboti

So far so good. Probably 60 or so miles on it

Any updates on this?

Thx

Jsoboti · 07-18-2014, 11:30 PM

Quote:

Originally Posted by fisc0h

Quote:

Originally Posted by Jsoboti

So far so good. Probably 60 or so miles on it

Any updates on this?

Thx

No codes being thrown by the Jb4. When I do the code check through the steering wheel and speedo/tach I get 0 codes. Not sure if the JB4 is suppressing them or what not. But it appears to be working

Knonsense · 08-07-2014, 09:42 AM

works on and off. dammit.

CEL isn't a problem, per se, it's just annoying and i'd like it to only illuminate for actual issues.

rr006rbc · 08-07-2014, 10:04 AM

I would REALLY like for someone to find a fix. Cobb doesn't support my 2013 DME and I don't like the way JB4 has to hijack your wiring harness and tap into the DME; fighting it continuously. Please update!!!

Jsoboti · 08-07-2014, 10:06 AM

Quote:

Originally Posted by rr006rbc

I would REALLY like for someone to find a fix. Cobb doesn't support my 2013 DME and I don't like the way JB4 has to hijack your wiring harness and tap into the DME; fighting it continuously. Please update!!!

The JB4 is awesome dude. It doesn't feel like your car is fighting it. It takes a few times driving it with the JB4 on it for the car to settle into it and after that it feels like a normal car... With loads more power. Give it a shot if you haven't already. And go ISO

Michael__kopp · 09-30-2014, 05:00 PM

Any word on if any codes were thrown??

Jsoboti · 10-01-2014, 08:57 AM

Quote:

Originally Posted by Michael__kopp

Any word on if any codes were thrown??

Still throwing codes at WOT. The search for a real fix continues

tke344 · 10-01-2014, 09:20 AM

^ Interesting.. sounds like it may be enough of a "solution" to pass emissions where OBDII readiness is required as long as you clear all codes then conservatively for a week or so prior to the test. After that just set your tune to hide the code again until next year.

g2BMW · 10-01-2014, 11:49 AM

Quote:

Originally Posted by Jsoboti

Still throwing codes at WOT. The search for a real fix continues

Just wondering how long is your 90 degree spacer is? Maybe if you add another small extension to the existing spacer might help on WOT. A cheap option for spacers is spark plug defouler but will need drilling it out. http://www.autozone.com/autozone/acc...er=730544_0_0_

commonly done to beat CEL

DesertBMW · 10-01-2014, 12:38 PM

N55 engine management is very emissions sensitive, if it detects a problem with a catalyzer it will constantly shift mappings and try to correct the issue and performance would suffer.

divisionbell77 · 10-01-2014, 01:09 PM

Guys, until a professional company decodes it, it's not happening.

Jsoboti · 10-01-2014, 09:28 PM

Quote:

Originally Posted by g2BMW

Quote:

Originally Posted by Jsoboti

Still throwing codes at WOT. The search for a real fix continues

Just wondering how long is your 90 degree spacer is? Maybe if you add another small extension to the existing spacer might help on WOT. A cheap option for spacers is spark plug defouler but will need drilling it out. http://www.autozone.com/autozone/acc...er=730544_0_0_

commonly done to beat CEL

I think the problem is the pressure that builds when WOT. Regardless of how long or the angle of the extension it would seem that the high pressure is forcing enough of the exhaust into the spacer and the sensor is picking up on it. Oh well

Mannix · 10-01-2014, 11:40 PM

What about this? Has anybody here tried it?

http://www.vr-speed.com/vrsf-catless...-bmw-335i.html

It says

Quote:

This item fits the following BMWs:
2007-2010 E90/E91/E92/E93 BMW 335i
2011-2012 E92 BMW 335is
2008-2010 E82 BMW 135i

Johnny Boost · 10-01-2014, 11:53 PM

Quote:

Originally Posted by Mannix

What about this? Has anybody here tried it?

http://www.vr-speed.com/vrsf-catless...-bmw-335i.html

It says

Quote:

This item fits the following BMWs:
2007-2010 E90/E91/E92/E93 BMW 335i
2011-2012 E92 BMW 335is
2008-2010 E82 BMW 135i

None of those are n55 models.

07-07-2014, 09:21 PM	#46
e92proper Banned 45 Rep 531 Posts Drives: 2011 e92 335 / 2013 X3 Join Date: Jun 2014 Location: NJ/NY/MD iTrader: (0)	So there is no way to run a dp on my 2011 n55 unless I have a tune to eliminate the cel?
	Appreciate 0 Quote

07-08-2014, 05:18 PM	#48
Silver99GSX Captain 40 Rep 611 Posts Drives: 2011 BMW 335i X-Drive M-Sport Join Date: Apr 2014 Location: Schenectady, NY iTrader: (31)	I tried the (eBay) 02 sensor spacer on my N55 and about 140miles later CEL was on. My buddy and I our going to be trying a few different setups the next few weeks. He has a custom o2 Spacer that he has made and on my buddies N54 has over 1500 miles and no CEL and passes our NY State Emissions testing. So now we will be trying it on my N55. I did the install of my down pipe using once again the eBay 02 sensor spacer. Wish I had called him before I installed mine and to have tried his 02 sensor spacer from the start. I was going to try them O2 Simulator Min Cat CEL Fix, but I see that Jsoboti has had no luck so far. Jsoboti Please keep us updated with the Mini 02 spacers. I will also keep everyone posted with my buddies O2 Sensor Spacers. __________________ -2011 Le Mans Blue/Oyster 335i X-Drive 6MT E90 M-Sport, Convenience, Comfort, Technology, H/K, Navi Etc... Mod's Coming soon!! -1999 Mitsubishi Eclipse GSX 2.3L, HTA3586R at Low Boost (19psi) Pump Gas 406Hp 379TQ = 11.4 @121Mph (best), Race Gas Coming soon est 700Hp
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07-09-2014, 01:57 PM	#50
Jsoboti Lieutenant 28 Rep 583 Posts Drives: 2011 335i E92 M-Sport 6MT Join Date: May 2014 Location: Mississippi iTrader: (0)	Update: I have the spacer off the top 02 sensor and I now have the 90 degree spacer on the bottom one, cleared the codes with a code scanner and now I'll drive home and see if I get a code. I plan on putting the JB4 back on tomorrow so I'm not sure if I'll put enough miles on it to notice the code or not but we'll see. Also the vrsf DP was a major PITA toninstall the first time but this time it was a breeze __________________ JB4 G5 ISO FF \| BMS Performance Intake \| BMS Wheel Spacers \| VRSF Catless DP \| Red CYBA Scoops \| Supreme Power Lowering Perches \| VRSF Charge Pipe \| VMR 810 19x8.5 ET35 19x9.5 ET33 \| Michelin PSS 235/265 \| BMS CDV \| BMS Clutch Stop \| 4'' Tips
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07-10-2014, 06:32 PM	#51
melloww22 Captain 105 Rep 955 Posts Drives: 2011 335i E90 Join Date: Apr 2011 Location: San Diego iTrader: (1)	Did it worked
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08-07-2014, 09:42 AM	#55
Knonsense Private First Class 10 Rep 107 Posts Drives: 335xi. Join Date: Feb 2014 Location: NoVa iTrader: (0)	works on and off. dammit. CEL isn't a problem, per se, it's just annoying and i'd like it to only illuminate for actual issues. __________________ 2011 335xi M-Tech \| Koni Yellows \| Alpina TCU \| Injen CAI \| JB4 \| Ar resonsated 4" dp \| PE Mod \| LUX \| Coded 2009 R1200 GS Adventure Prudhoe & Back.
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08-07-2014, 10:04 AM	#56
rr006rbc Colonel 1204 Rep 2,818 Posts Drives: '23 M440i GC Join Date: Mar 2013 Location: California iTrader: (38)	I would REALLY like for someone to find a fix. Cobb doesn't support my 2013 DME and I don't like the way JB4 has to hijack your wiring harness and tap into the DME; fighting it continuously. Please update!!!
	Appreciate 0 Quote

09-30-2014, 05:00 PM	#58
Michael__kopp New Member 6 Rep 25 Posts Drives: black 2011 335i Join Date: Jan 2014 Location: Las Vegas iTrader: (0)	Any word on if any codes were thrown??
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10-01-2014, 09:20 AM	#60
tke344 Lieutenant 38 Rep 463 Posts Drives: f15 X5 50i Join Date: Jan 2009 Location: Charlotte iTrader: (1)	^ Interesting.. sounds like it may be enough of a "solution" to pass emissions where OBDII readiness is required as long as you clear all codes then conservatively for a week or so prior to the test. After that just set your tune to hide the code again until next year.
	Appreciate 0 Quote

10-01-2014, 12:38 PM	#62
DesertBMW Banned 15 Rep 75 Posts Drives: 1996 328i with N55 engine Join Date: Aug 2013 Location: Phoenix AZ USA iTrader: (0)	N55 engine management is very emissions sensitive, if it detects a problem with a catalyzer it will constantly shift mappings and try to correct the issue and performance would suffer.
	Appreciate 0 Quote

10-01-2014, 01:09 PM	#63
divisionbell77 Lieutenant 16 Rep 459 Posts Drives: 2011 335i XDrive Coupe Join Date: Mar 2012 Location: Ohio iTrader: (1)	Guys, until a professional company decodes it, it's not happening.
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