N55 down pipe fix found!

nate16 · 03-03-2016, 01:03 PM

Quote:

Originally Posted by jwalker87

Trouble in paradise. After a few days of driving my car (2011 e90 335i xdrive) entered limp mode. Sort of. Said so in the dash but still had power. Got the following codes. Anyone else afflicted? This is on a car with JB4 (autoclear is off) and the BMS BEF via Cobb AP.

2D15 - O2 Sensor Delayed Response - Rich to Lean (Bank 1 Sensor 2)
2CED - O2 Sensor Slow Response - Rich to Lean (Bank 1 Sensor 2)

I scanned my car today and had 2D15 -- Monitors are Ready and no CEL

ricerider187 · 03-03-2016, 08:40 PM

does auto-clear mean it clears the codes so they wont be picked up later when scanned by a device even?

debating on whether to just go auto-clear on JB4 or buy the cat sim

how does the catsim install? does it splice into any wires?

Ozzie335i · 03-03-2016, 09:28 PM

Quote:

Originally Posted by ricerider187

does auto-clear mean it clears the codes so they wont be picked up later when scanned by a device even?

debating on whether to just go auto-clear on JB4 or buy the cat sim

how does the catsim install? does it splice into any wires?

The peace of mind is well worth the cost of admission as something potentially critical that may have been auto cleared will be brought to your attention.

Instructions are included with the device.

Mannix · 03-06-2016, 12:15 AM

Update:

Had the AA catless downpipe and catsim installed Wednesday. No codes until Saturday (today). Took the car to the drag strip to see if the catless downpipe gave me more power (it didn't). Sometime after a few runs, I noticed a code 2d15. Looked it up and it has something to do with the O2 sensor. Cleared it, and it never came back.

Cory S · 03-06-2016, 12:35 AM

Quote:

Originally Posted by Mannix

Update:

Had the AA catless downpipe and catsim installed Wednesday. No codes until Saturday (today). Took the car to the drag strip to see if the catless downpipe gave me more power (it didn't). Sometime after a few runs, I noticed a code 2d15. Looked it up and it has something to do with the O2 sensor. Cleared it, and it never came back.

What was your trap speed before and after the catless DP?

rob24ert · 03-06-2016, 01:33 PM

Quote:

Originally Posted by Cory S

What was your trap speed before and after the catless DP?

Also curious. Mods?

Mannix · 03-06-2016, 09:09 PM

Quote:

Originally Posted by Cory S

What was your trap speed before and after the catless DP?

Before: ETs were between 13.0 and 13.2; MPH were between 106 and 108.
After: Same as above.

Jsoboti · 03-07-2016, 09:19 AM

Has anyone run into issues disabling auto clear on your JB4?

I selected 1-4 which should be disable auto clear but I haven't gotten any codes after about 30 miles of driving including multiple hard pulls. I don't want to install the cat sim until I'm sure which codes I have, everything else is healthy, etc.

OneMoreAlex · 03-07-2016, 08:48 PM

Quote:

Originally Posted by Jsoboti

Has anyone run into issues disabling auto clear on your JB4?

I selected 1-4 which should be disable auto clear but I haven't gotten any codes after about 30 miles of driving including multiple hard pulls. I don't want to install the cat sim until I'm sure which codes I have, everything else is healthy, etc.

I might be wrong about this but I think the codes show up after a full drive cycle. I don't think it's limited to the amount of miles. Someone please correct me if I'm wrong.

I do know that even with autoclear enabled you still will see a visual check engine light that will rapidly disappear, but none the less a warning will sound and the light should show up. If you scan for codes does it show you all systems are in ready state? Or are the monitors not ready??

Mannix · 03-11-2016, 11:13 PM

It's been more than a week since I installed a catless downpipe and the a74 catsim solution. I have Dinan S2 software (no JB4). So far, so good. No codes, no warning lights.

Cory S · 03-11-2016, 11:53 PM

Quote:

Originally Posted by Mannix

It's been more than a week since I installed a catless downpipe and the a74 catsim solution. I have Dinan S2 software (no JB4). So far, so good. No codes, no warning lights.

Is your OBDll readiness good to go?

Johnny Boost · 03-12-2016, 03:01 AM

Quote:

Originally Posted by Cory S

Quote:

Originally Posted by Mannix

It's been more than a week since I installed a catless downpipe and the a74 catsim solution. I have Dinan S2 software (no JB4). So far, so good. No codes, no warning lights.

Is your OBDll readiness good to go?

Yep, it works fine.

Mannix · 03-12-2016, 11:13 PM

Quote:

Originally Posted by Cory S

Is your OBDll readiness good to go?

Beats the hell out of me.

PrematureApex · 03-13-2016, 07:25 AM

Quote:

Originally Posted by Mannix

Beats the hell out of me.

Hahaha. After a week, with mixed driving, you certainly would have completed the drive cycle required to clear all the monitors. Without a CEL yet, it's safe to say you're all good.

Not a bad idea to put a scanner on it real quick to confirm...but as everyone has found this fix to actually work, no reason to suspect you're not good to go.

Mannix · 03-13-2016, 07:09 PM

Quote:

Originally Posted by PrematureApex

Hahaha. After a week, with mixed driving, you certainly would have completed the drive cycle required to clear all the monitors. Without a CEL yet, it's safe to say you're all good.

Not a bad idea to put a scanner on it real quick to confirm...but as everyone has found this fix to actually work, no reason to suspect you're not good to go.

Can you recommend a good scanner (not made in China)?

PrematureApex · 03-14-2016, 07:20 PM

Edit, old post!

Michael__kopp · 03-19-2016, 02:28 PM

Does anyone have a how-to on installing the o2 sim? Is there splicing involved?

Silver99GSX · 03-21-2016, 01:49 PM

For anyone who has doubted A R E A 7 4's o2 CatSim (Which I am sure there are people out there). I just passed New York State's Emission's (NYSI) with my Kitty-less Down Pipe. I was getting the pending code: 2D15 - O2 Sensor Delayed Response - Rich to Lean (Bank 1 Sensor 2) And 2CED - O2 Sensor Slow Response - Rich to Lean (Bank 1 Sensor 2), But after clearing them a few times I have not seen them come back for about 100 miles so far. I ended up soldering my wires to the Harness for the extra security and then used heat shrink as well. It seemed when I was monitoring my Drive Cycle that the o2 sim / BMW's DME was learning the system / Each other? But I can be wrong. Thanks Again A R E A 7 4 and kevBquick!!!!! You have saved me 3-4 hours+ from taken my DP off / On.

Rahim e92 · 03-21-2016, 11:02 PM

Quote:

Originally Posted by Silver99GSX

For anyone who has doubted A R E A 7 4's o2 CatSim (Which I am sure there are people out there). I just passed New York State's Emission's (NYSI) with my Kitty-less Down Pipe. I was getting the pending code: 2D15 - O2 Sensor Delayed Response - Rich to Lean (Bank 1 Sensor 2) And 2CED - O2 Sensor Slow Response - Rich to Lean (Bank 1 Sensor 2), But after clearing them a few times I have not seen them come back for about 100 miles so far. I ended up soldering my wires to the Harness for the extra security and then used heat shrink as well. It seemed when I was monitoring my Drive Cycle that the o2 sim / BMW's DME was learning the system / Each other? But I can be wrong. Thanks Again A R E A 7 4!!!!! You have saved me 3-4 hours+ from taken my DP off / On.

+1 I passed Maryland state emissions

Johnny Boost · 03-21-2016, 11:47 PM

Quote:

Originally Posted by Michael__kopp

Does anyone have a how-to on installing the o2 sim? Is there splicing involved?

Yes it's on their website. KevBquick made an N55-specific DIY also.

Mannix · 03-22-2016, 06:59 PM

Update:

The catless DP and catsim were installed on 2 March 2016.

The only code that came up since then happened once—when I was at the drag strip on 5 March 2016. I can't remember what the code was, but I'm pretty sure is started with a "2" and ended with a "15". 2C15? Whatever it was, I looked it up and it was related to the O2 sensor. I cleared it, and it never came back.

I went to the dyno on 9 March 2016 and made three pulls. No codes.

And since then, I have been driving the car normally. No codes.

around · 03-23-2016, 08:46 PM

great results !!!!!

I say, thank you, THANK YOU !!!! to A74 and kevBquick.

cheers to the iO2....

an amazing unit!

03-03-2016, 08:40 PM	#266
ricerider187 Ricebanger 24 Rep 260 Posts Drives: 2011 335xi Coupe Join Date: Mar 2013 Location: ONTARIO/ SK iTrader: (0)	does auto-clear mean it clears the codes so they wont be picked up later when scanned by a device even? debating on whether to just go auto-clear on JB4 or buy the cat sim how does the catsim install? does it splice into any wires?
	Appreciate 0 Quote

03-06-2016, 12:15 AM	#268
Mannix Private 22 Rep 86 Posts Drives: 2011 335i E92 N55 Join Date: Jul 2014 Location: USA iTrader: (0)	Update: Had the AA catless downpipe and catsim installed Wednesday. No codes until Saturday (today). Took the car to the drag strip to see if the catless downpipe gave me more power (it didn't). Sometime after a few runs, I noticed a code 2d15. Looked it up and it has something to do with the O2 sensor. Cleared it, and it never came back.
	Appreciate 0 Quote

03-07-2016, 09:19 AM	#272
Jsoboti Lieutenant 28 Rep 583 Posts Drives: 2011 335i E92 M-Sport 6MT Join Date: May 2014 Location: Mississippi iTrader: (0)	Has anyone run into issues disabling auto clear on your JB4? I selected 1-4 which should be disable auto clear but I haven't gotten any codes after about 30 miles of driving including multiple hard pulls. I don't want to install the cat sim until I'm sure which codes I have, everything else is healthy, etc. __________________ 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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03-11-2016, 11:13 PM	#274
Mannix Private 22 Rep 86 Posts Drives: 2011 335i E92 N55 Join Date: Jul 2014 Location: USA iTrader: (0)	It's been more than a week since I installed a catless downpipe and the a74 catsim solution. I have Dinan S2 software (no JB4). So far, so good. No codes, no warning lights.
	Appreciate 0 Quote

03-14-2016, 07:20 PM	#280
PrematureApex Colonel 840 Rep 2,402 Posts Drives: N55 X1, N54 135, s54 m3 Join Date: Jan 2008 Location: Philadelphia iTrader: (0)	Edit, old post! __________________ '02 S54 M3 (500/500 GC/Koni) '08 N54 135 (JB4, DCI, BMW PS/Bilstein B6s, H&R M3 FSB, Strongflex FCABs) '14 N55 X1 (JB4, BMS DP, BMS Intake, Alpina TCU reflash, H&R Sports, Bilstein B6s, E93 M3 RSB, Strongflex FCABs, baby seat) '08 N54 535xi touring (Bilstein B6s, Downpipes, MHD tune, baby seat)
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03-19-2016, 02:28 PM	#281
Michael__kopp New Member 6 Rep 25 Posts Drives: black 2011 335i Join Date: Jan 2014 Location: Las Vegas iTrader: (0)	Does anyone have a how-to on installing the o2 sim? Is there splicing involved?
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03-21-2016, 01:49 PM	#282
Silver99GSX Captain 40 Rep 611 Posts Drives: 2011 BMW 335i X-Drive M-Sport Join Date: Apr 2014 Location: Schenectady, NY iTrader: (31)	For anyone who has doubted A R E A 7 4's o2 CatSim (Which I am sure there are people out there). I just passed New York State's Emission's (NYSI) with my Kitty-less Down Pipe. I was getting the pending code: 2D15 - O2 Sensor Delayed Response - Rich to Lean (Bank 1 Sensor 2) And 2CED - O2 Sensor Slow Response - Rich to Lean (Bank 1 Sensor 2), But after clearing them a few times I have not seen them come back for about 100 miles so far. I ended up soldering my wires to the Harness for the extra security and then used heat shrink as well. It seemed when I was monitoring my Drive Cycle that the o2 sim / BMW's DME was learning the system / Each other? But I can be wrong. Thanks Again A R E A 7 4 and kevBquick!!!!! You have saved me 3-4 hours+ from taken my DP off / On. Last edited by Silver99GSX; 03-25-2016 at 09:14 AM..
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03-22-2016, 06:59 PM	#285
Mannix Private 22 Rep 86 Posts Drives: 2011 335i E92 N55 Join Date: Jul 2014 Location: USA iTrader: (0)	Update: The catless DP and catsim were installed on 2 March 2016. The only code that came up since then happened once—when I was at the drag strip on 5 March 2016. I can't remember what the code was, but I'm pretty sure is started with a "2" and ended with a "15". 2C15? Whatever it was, I looked it up and it was related to the O2 sensor. I cleared it, and it never came back. I went to the dyno on 9 March 2016 and made three pulls. No codes. And since then, I have been driving the car normally. No codes.
	Appreciate 2 Quote

03-23-2016, 08:46 PM	#286
around Enlisted Member 0 Rep 37 Posts Drives: 4 doors, one hood Join Date: Feb 2016 Location: Canada iTrader: (0)	great results !!!!! I say, thank you, THANK YOU !!!! to A74 and kevBquick. cheers to the iO2.... an amazing unit!
	Appreciate 0 Quote