All COBB Tuning AccessPORT for 135i Discussion Here

AZ_1Zeries · 09-10-2012, 06:53 PM

All of the 02 sensors are accessed from underneath the car. The pre cat sensors are about 3 inches from the turbos and mounted on the DPs. From the codes you are getting it is probably your pre cat bank 2 sensor which is closer to the drivers side. Hope this helps. If it was me, I would swap the bank 1 and bank 2 pre cat sensors and see if the codes switch to bank 1 then I would know for sure. Those sensors aren't cheap.

1fan88 · 09-10-2012, 11:07 PM

Quote:

Originally Posted by AZ_1Zeries

All of the 02 sensors are accessed from underneath the car. The pre cat sensors are about 3 inches from the turbos and mounted on the DPs. From the codes you are getting it is probably your pre cat bank 2 sensor which is closer to the drivers side. Hope this helps. If it was me, I would swap the bank 1 and bank 2 pre cat sensors and see if the codes switch to bank 1 then I would know for sure. Those sensors aren't cheap.

I don't think the o2 sensors are bad. I just think they are installed in the wrong places because I forgot where they went when reinstalling them. So it sounds like I'm going to have to take the downpipes off? There isn't a way to get to the sensors up top from the engine bay? I was told by VRSF that the ones on the drivers side should be black, while the ones on the passenger side should be gray. I go by the left downpipe being on the driver's side and the right downpipe on the passenger side. Can you verify this that it is correct? Also, is there a diagram of the o2 sensors on this car that specifies which color goes to which downpipe?

AZ_1Zeries · 09-11-2012, 01:14 AM

It could be that they are switched. For the pre cat, the bank 2 sensor on driver side should have a gray sleeve. The pipe twists as it goes towards the back of the car so the bank2 post cat sensor is on the passengers side. You should check that too. It should also have a gray sleeve.

If its only your pre cat sensors that are swapped then its possible to access them from underneath the car without taking out the DPs. You have to take off a bolt holding the steering column so you can move it forward and that should give you access for a hand and a wrench. I would also make sure the clamps are tight on both turbos and verify all the sensors are tightened down properly. Here's a good diy for reference if you haven't seen it already.

http://www.1addicts.com/forums/showthread.php?t=304306

Spoolin Montego · 09-12-2012, 01:27 PM

I know this is a stupid question - But am I running a big risk If I put 100 octane in my car and run it on the Aggressive stage 2+ map for a few pulls even though I don't have an intercooler? It will be at night so it won't be that hot out...I have a guy with a Z06 that wants to run.

135Pats · 09-12-2012, 04:05 PM

Quote:

Originally Posted by Spoolin Montego

I know this is a stupid question - But am I running a big risk If I put 100 octane in my car and run it on the Aggressive stage 2+ map for a few pulls even though I don't have an intercooler? It will be at night so it won't be that hot out...I have a guy with a Z06 that wants to run.

I would be wary about running such aggressive mapping with the stock FMIC. I dont think it would destroy anything, but at that point you should be pretty spot on mod wise before running that type of boost and timing. The stock IC could choke the engine.

1911A145 · 09-12-2012, 05:08 PM

Quote:

Originally Posted by Spoolin Montego

I know this is a stupid question - But am I running a big risk If I put 100 octane in my car and run it on the Aggressive stage 2+ map for a few pulls even though I don't have an intercooler? It will be at night so it won't be that hot out...I have a guy with a Z06 that wants to run.

Buy an intercooler, upload the beta 100 octane map, go race him.

Spoolin Montego · 09-12-2012, 05:22 PM

Quote:

Originally Posted by 1911A145

Buy an intercooler, upload the beta 100 octane map, go race him.

I know intercooler soon..I'm getting wheels first though. I'm sure on the 100 tune I would be able to pull on him.

SukSqueezeBangBlo · 09-26-2012, 02:01 PM

Question about the Cobb software. I am used to the JB4 auto clear feature and DP Fix. 1.How does the o2 sim work for Cobb?

2.Does it throw a cel then auto clear(like the jb4 auto clear function)?

3.Does it ever throw codes for o2 sensors? Or is it just coded out..

4.Is there a way to run the stock map with the o2 sensors coded out? (For bringing the car to the dealer with DPs on but no tune)

Thank You!

Venom · 09-26-2012, 02:47 PM

1. Stage 2 only has its own 02 simulation. It will not throw a CEL unless you have plugged the 02 sensors in incorrectly (seems to happen a lot).

2. It never throws 02 codes unless you switch to a lower stage map (I tested this myself).

3. AFAIK no. I called Cobb tech support and they told me that only map 2 will have the DP fix. Before bringing it in, I would always take the DPs off and put it back to stock. It's just not worth the headache of having your whole warranty voided.

SukSqueezeBangBlo · 09-26-2012, 03:05 PM

Quote:

Originally Posted by Venom

1. Stage 2 only has its own 02 simulation. It will not throw a CEL unless you have plugged the 02 sensors in incorrectly (seems to happen a lot).

2. It never throws 02 codes unless you switch to a lower stage map (I tested this myself).

3. AFAIK no. I called Cobb tech support and they told me that only map 2 will have the DP fix. Before bringing it in, I would always take the DPs off and put it back to stock. It's just not worth the headache of having your whole warranty voided.

Thanks for a quick response! I wish cobb had a stock map with the dos coded out. It would only make sense..

Venom · 09-26-2012, 05:21 PM

Quote:

Originally Posted by Mattgfx

Thanks for a quick response! I wish cobb had a stock map with the dos coded out. It would only make sense..

Same here, but even then I'd be wary to take it in to the dealership. I'll be honest, I get the same MPG for Stage 2 Drive as I do for the BMW OEM map. (It's just harder to not push the accelerator for the gobs of torque that come on.)

cadeucsb · 09-27-2012, 01:47 PM

Quote:

Originally Posted by Venom

1. Stage 2 only has its own 02 simulation. It will not throw a CEL unless you have plugged the 02 sensors in incorrectly (seems to happen a lot).

2. It never throws 02 codes unless you switch to a lower stage map (I tested this myself).

3. AFAIK no. I called Cobb tech support and they told me that only map 2 will have the DP fix. Before bringing it in, I would always take the DPs off and put it back to stock. It's just not worth the headache of having your whole warranty voided.

Can it pass an odb port emissions test then? Or is the car in that 'not ready' state, leading to test failure?

SalemChiro · 09-27-2012, 02:57 PM

Has anyone dynoed Stage 1+ Sport or Aggressive? I'm curious what the deltas look like from the base map. Cobb's site doesn't have a graph for stage 1+ yet.

Venom · 09-27-2012, 03:22 PM

Quote:

Originally Posted by cadeucsb

Can it pass an odb port emissions test then? Or is the car in that 'not ready' state, leading to test failure?

I have no idea, that would be a good question for Robb@Cobb or any other Cobb member. Let me know what you find out, I may need to know in a year or two to pass emissions myself.

Ænema · 09-27-2012, 05:04 PM

Quote:

Originally Posted by cadeucsb

Can it pass an odb port emissions test then? Or is the car in that 'not ready' state, leading to test failure?

If the OBD test comes back as "not ready" then you(or the test official) will have to drive the car until the OBD test cycle is complete. Which will never happen.

cadeucsb · 09-27-2012, 05:17 PM

Quote:

Originally Posted by Ænema

If the OBD test comes back as "not ready" then you(or the test official) will have to drive the car until the OBD test cycle is complete. Which will never happen.

Yea, I understand...thats why I asked.

Ænema · 09-27-2012, 05:22 PM

Quote:

Originally Posted by cadeucsb

Yea, I understand...thats why I asked.

I'm sorry, but I don't understand the question then.

cadeucsb · 09-28-2012, 10:56 AM

Quote:

Originally Posted by Ænema

I'm sorry, but I don't understand the question then.

The question is, does Cobbs implementation prevent the 'Not Ready' state or does it allow it which would lead to test failure? Thanks for the help tho

Ænema · 09-28-2012, 05:16 PM

Quote:

Originally Posted by cadeucsb

The question is, does Cobbs implementation prevent the 'Not Ready' state or does it allow it which would lead to test failure? Thanks for the help tho

It will remain "not ready" constantly. I assume that means you will "fail" the test.

cwg · 09-28-2012, 10:24 PM

Gee and I thought the Cob "Not Ready" state only applied to their N55 tune

bdoooh · 09-29-2012, 12:11 AM

Quote:

Originally Posted by cwg

Gee and I thought the Cob "Not Ready" state only applied to their N55 tune

I see what you did there.

SukSqueezeBangBlo · 09-30-2012, 12:51 AM

Quote:

Originally Posted by cadeucsb

The question is, does Cobbs implementation prevent the 'Not Ready' state or does it allow it which would lead to test failure? Thanks for the help tho

I think the 02 code out does allow them to be in the ready state... This needs to be confirmed

09-10-2012, 06:53 PM	#1365
AZ_1Zeries midnight modder 6 Rep 81 Posts Drives: 09' 135i cp 6MT Join Date: May 2012 Location: Arizona iTrader: (4)	All of the 02 sensors are accessed from underneath the car. The pre cat sensors are about 3 inches from the turbos and mounted on the DPs. From the codes you are getting it is probably your pre cat bank 2 sensor which is closer to the drivers side. Hope this helps. If it was me, I would swap the bank 1 and bank 2 pre cat sensors and see if the codes switch to bank 1 then I would know for sure. Those sensors aren't cheap. __________________ COBB Race E30, CDV Mod, Pedal Stop Mod, KW V2, M3 control arms and 28mm Frt Sway, Helix FMIC, AR DPs, DCIs, ER Chargepipe/Tial BOV, Agency Power Mids, CPe axleback exhaust, BMS 4LED Angel Eyes, BMW Perf CF mirror caps, Bimmian Amber Delete, Alufegen SF71 Hankook Ventus[/FONT]
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09-11-2012, 01:14 AM	#1367
AZ_1Zeries midnight modder 6 Rep 81 Posts Drives: 09' 135i cp 6MT Join Date: May 2012 Location: Arizona iTrader: (4)	It could be that they are switched. For the pre cat, the bank 2 sensor on driver side should have a gray sleeve. The pipe twists as it goes towards the back of the car so the bank2 post cat sensor is on the passengers side. You should check that too. It should also have a gray sleeve. If its only your pre cat sensors that are swapped then its possible to access them from underneath the car without taking out the DPs. You have to take off a bolt holding the steering column so you can move it forward and that should give you access for a hand and a wrench. I would also make sure the clamps are tight on both turbos and verify all the sensors are tightened down properly. Here's a good diy for reference if you haven't seen it already. http://www.1addicts.com/forums/showthread.php?t=304306 __________________ COBB Race E30, CDV Mod, Pedal Stop Mod, KW V2, M3 control arms and 28mm Frt Sway, Helix FMIC, AR DPs, DCIs, ER Chargepipe/Tial BOV, Agency Power Mids, CPe axleback exhaust, BMS 4LED Angel Eyes, BMW Perf CF mirror caps, Bimmian Amber Delete, Alufegen SF71 Hankook Ventus[/FONT]
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09-12-2012, 01:27 PM	#1368
Spoolin Montego Captain 640 Rep 884 Posts Drives: 16 m3/20 x5m/23 m3 Join Date: Mar 2012 Location: Orange County iTrader: (1)	I know this is a stupid question - But am I running a big risk If I put 100 octane in my car and run it on the Aggressive stage 2+ map for a few pulls even though I don't have an intercooler? It will be at night so it won't be that hot out...I have a guy with a Z06 that wants to run.
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09-26-2012, 02:01 PM	#1372
SukSqueezeBangBlo Captain 121 Rep 888 Posts Drives: F80 M3 Join Date: Oct 2009 Location: Best Coast iTrader: (1)	Question about the Cobb software. I am used to the JB4 auto clear feature and DP Fix. 1.How does the o2 sim work for Cobb? 2.Does it throw a cel then auto clear(like the jb4 auto clear function)? 3.Does it ever throw codes for o2 sensors? Or is it just coded out.. 4.Is there a way to run the stock map with the o2 sensors coded out? (For bringing the car to the dealer with DPs on but no tune) Thank You! __________________ M
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09-26-2012, 02:47 PM	#1373
Venom Colonel 376 Rep 2,388 Posts Drives: M2 Competition Join Date: May 2011 Location: East Bay, CA iTrader: (5) Garage List 2008 BMW 135i [8.50]	1. Stage 2 only has its own 02 simulation. It will not throw a CEL unless you have plugged the 02 sensors in incorrectly (seems to happen a lot). 2. It never throws 02 codes unless you switch to a lower stage map (I tested this myself). 3. AFAIK no. I called Cobb tech support and they told me that only map 2 will have the DP fix. Before bringing it in, I would always take the DPs off and put it back to stock. It's just not worth the headache of having your whole warranty voided.
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09-27-2012, 02:57 PM	#1377
SalemChiro Second Lieutenant 9 Rep 268 Posts Drives: 135i vert Join Date: May 2012 Location: MA iTrader: (0)	Has anyone dynoed Stage 1+ Sport or Aggressive? I'm curious what the deltas look like from the base map. Cobb's site doesn't have a graph for stage 1+ yet.
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09-28-2012, 10:24 PM	#1384
cwg Captain 47 Rep 722 Posts Drives: 2017 M4 ZCP. AZB on black Join Date: Nov 2010 Location: Kailua, HI iTrader: (0)	Gee and I thought the Cob "Not Ready" state only applied to their N55 tune
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