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      03-22-2012, 08:31 PM   #23
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Quote:
Originally Posted by PAKMAN View Post
Hey guys I'm having similar problems with my 2011.5 dct. On cold starts while going down my driveway and stopping it jumps from 5-1.5k for constantly for about three times and stops. You guy think it's the icv as well??
Either that or a bad o2 sensor are probably the most likely causes. Does it turn on the service engine soon light?
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      03-23-2012, 01:45 AM   #24
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Quote:
Originally Posted by Singletrack View Post
Either that or a bad o2 sensor are probably the most likely causes. Does it turn on the service engine soon light?
i am running catless x-pipe with the akra delete-r, not sure because the cel is turned off by the akradr. its not really a big deal for me because it goes away after a few seconds but just trying to figure out what it might be.
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      03-23-2012, 05:37 AM   #25
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Pak, I'm assuming you haven't removed the cold start cycle upon start-up?

I've had the issue a couple times, with both the OEM and AA X-pipe, particularly on colder mornings. I'm assuming, and someone with more knowledge can correct me if I'm wrong, that is has to do with the cold start up, and the O2 sensors continuously trying to hit and alter what is a rich AF ratio.

Had the dealership check my ICV and all is well apparently (only 8000km's/5000miles).
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      03-23-2012, 09:12 AM   #26
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I had the same with checking the icv...the dealer can't say anything till the time it totally breaks down...the problem is that broken icv doesn't show any mistakes under check engine light so BMW as a service can't do anything. It's definitely this icv or the vent which is next to this...believe me if you change it, it will work... Apparently it was common for e9X m3 USA till 2009...
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      03-24-2012, 10:23 PM   #27
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Quote:
Originally Posted by Canuckles View Post
Pak, I'm assuming you haven't removed the cold start cycle upon start-up?

I've had the issue a couple times, with both the OEM and AA X-pipe, particularly on colder mornings. I'm assuming, and someone with more knowledge can correct me if I'm wrong, that is has to do with the cold start up, and the O2 sensors continuously trying to hit and alter what is a rich AF ratio.

Had the dealership check my ICV and all is well apparently (only 8000km's/5000miles).
nope havent removed the cold start cycle, i am thinking on doing so later on when i end up purchasing a tune.

ah i see what you mean and i can understand what you mean. i will try again when it stops raining and see if it does the same thing! thanks for the info!
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      06-14-2012, 10:36 AM   #28
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For the past four days as soon as I start my car, I get a rough idle, then go into limp mode. I get the following codes. What do you think, ICV? The car runs fine when I restart the engine.

2B38:
Misfire with shutdown cylinder 4
Error will cause a warning light

2B39:
Misfire with shutdown cylinder 5
Error will cause a warning light

2B3A:
Misfire with shutdown cylinder 6
Error will cause a warning light

2B3B:
Misfire with shutdown cylinder 7
Error will cause a warning light

2B41:
Misfire with shutdown of several cylinders
Error will cause a warning light

2B57:
Motor emergency programm activated
Error will not cause a warning light

2796:
Motor emergency programm activated
Error will not cause a warning light

2B36:
Misfire with shutdown cylinder 2
Error will cause a warning light

2B37:
Misfire with shutdown cylinder 3
Error will cause a warning light

2B42:
Misfire exhaust worsening cylinder 1
Error will cause a warning light

2B43:
Misfire exhaust worsening cylinder 2
Error will cause a warning light

2B44:
Misfire exhaust worsening cylinder 3
Error will cause a warning light

2B45:
Misfire exhaust worsening cylinder 4
Error will cause a warning light

2B46:
Misfire exhaust worsening cylinder 5
Error will cause a warning light

2B47:
Misfire exhaust worsening cylinder 6
Error will cause a warning light

2B48:
Misfire exhaust worsening cylinder 7
Error will cause a warning light

2B49:
Misfire exhaust worsening cylinder 8
Error will cause a warning light

2B4E:
Misfire exhaust worseing several cylinders
Error will cause a warning light
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      06-16-2012, 09:58 AM   #29
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Anyone?
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      06-16-2012, 02:42 PM   #30
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Quote:
Originally Posted by Longbow64
Anyone?
When I had that it was a bad tune ruining the DME. But the codes related were for the mastervac booster sensor that wasn't working properly. Those codes you put up only came on once for me, but these were the circumstances.
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      06-17-2012, 12:48 PM   #31
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Quote:
Originally Posted by Longbow64 View Post
For the past four days as soon as I start my car, I get a rough idle, then go into limp mode. I get the following codes. What do you think, ICV? The car runs fine when I restart the engine.

2B38:
Misfire with shutdown cylinder 4
Error will cause a warning light

2B39:
Misfire with shutdown cylinder 5
Error will cause a warning light

2B3A:
Misfire with shutdown cylinder 6
Error will cause a warning light

2B3B:
Misfire with shutdown cylinder 7
Error will cause a warning light

2B41:
Misfire with shutdown of several cylinders
Error will cause a warning light

2B57:
Motor emergency programm activated
Error will not cause a warning light

2796:
Motor emergency programm activated
Error will not cause a warning light

2B36:
Misfire with shutdown cylinder 2
Error will cause a warning light

2B37:
Misfire with shutdown cylinder 3
Error will cause a warning light

2B42:
Misfire exhaust worsening cylinder 1
Error will cause a warning light

2B43:
Misfire exhaust worsening cylinder 2
Error will cause a warning light

2B44:
Misfire exhaust worsening cylinder 3
Error will cause a warning light

2B45:
Misfire exhaust worsening cylinder 4
Error will cause a warning light

2B46:
Misfire exhaust worsening cylinder 5
Error will cause a warning light

2B47:
Misfire exhaust worsening cylinder 6
Error will cause a warning light

2B48:
Misfire exhaust worsening cylinder 7
Error will cause a warning light

2B49:
Misfire exhaust worsening cylinder 8
Error will cause a warning light

2B4E:
Misfire exhaust worseing several cylinders
Error will cause a warning light

Looks like an ICV to me.
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Last edited by BPMSport; 06-17-2012 at 12:59 PM..
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      06-17-2012, 02:30 PM   #32
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Just had it updated about a month ago (1 May) from E89X-09-12-512 to E89X-12-03-502. The tune I'm running is the Vishnu Procede, but that doesn't change the DME and doesn't really activate until the engine warms up. The limp mode and codes is on the first start in the morning and then when I restart the engine it goes away and the car drives normal the rest of the day no matter how many times I start the car. I have a little more than 55k miles on the car. My plugs were replaced just after 35k.
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Last edited by Longbow64; 06-17-2012 at 02:39 PM.. Reason: Content
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      06-18-2012, 01:14 AM   #33
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Quote:
Originally Posted by Canuckles View Post
Pak, I'm assuming you haven't removed the cold start cycle upon start-up?

I've had the issue a couple times, with both the OEM and AA X-pipe, particularly on colder mornings. I'm assuming, and someone with more knowledge can correct me if I'm wrong, that is has to do with the cold start up, and the O2 sensors continuously trying to hit and alter what is a rich AF ratio.

Had the dealership check my ICV and all is well apparently (only 8000km's/5000miles).
Probably the best answer so far. I complained to my SA about this and he told me everyone jumps too quickly to the icv fault. He confirmed what u posted above to me o2 sensors and cold start adjusting . Even if it was icv they wouldn't touch it until u get a code thrown
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      06-18-2012, 10:20 AM   #34
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Cleared codes and disconnected the Procede (essentially back to stock) and had the same issues with start-up this morning. I have an appointment with BMW tomorrow. They are going to keep the car overnight so they have the codes when they start it up in the morning.

Estrader,
Are you saying not tuning out the cold start sequence might be the cause of this?
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      06-18-2012, 12:58 PM   #35
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Quote:
Originally Posted by Longbow64 View Post
Cleared codes and disconnected the Procede (essentially back to stock) and had the same issues with start-up this morning. I have an appointment with BMW tomorrow. They are going to keep the car overnight so they have the codes when they start it up in the morning.

Estrader,
Are you saying not tuning out the cold start sequence might be the cause of this?
im do not know for sure, However, i do notice this rpm bouncing thing happening here and there and its almost always in the mornings and happens during the cold start cycle, just seconds before the engine quiets down to normal idle.

I brought this to my CAs attention and he told me its the o2 sensors adjusting and not the ICV. He told me everyone wants to blame the ICV at first but if it is that, u will most certainly get a code thrown and it will get worse over time.

So far, the rpm bouncing thing on mine has not gotten worse...always the same just a second or 2 and NEVER happens while driving.

i read some people have deleted the cold start cycle and the issue is gone, but i kinda like that sound so ill live with it.
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      06-22-2012, 09:26 AM   #36
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The car's been at BMW since Tuesday. They haven't had time to get to it until yesterday. Then they finally started it at 4 in the afternoon and surprise, surprise, no problems. It was 105 degrees outside by that time, so I told them this happens during a cold start, not when the car is baking in the sun and already at operating temperatures. They promised to do it again first thing this morning. More to follow...
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      07-30-2012, 11:45 AM   #37
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I think I found the issue. The nut on the grounding bolt was loose on the engine bay. It was slightly looser than hand tightened and was causing my Alpine HID on the passenger side to go out. This is also where I have the Procede grounded. I cleanned off the connection and retightened the nut. No issues this morning.
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      07-30-2012, 07:19 PM   #38
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i know exactly what that is. happened to me and weeks later had a CEL. either your high or low pressure fuel sensor is going bad. i forgot which one it was. very easy fix and the part is like $80.
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      03-12-2013, 02:08 PM   #39
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Do you have this problem only in winters when the temp drops below 14celcius? Cuz i have the same problem plus it takes couple of sec to start in winters on a cold start... After the first start if i turn of and start again its fine... In summer time it starts fine even if i start it after a week.. Mine is a 10 model e93...7k miles.. I think not sure but its bas gas problem for myself as the car is in pakistan and in pakistan thr is no quality. Lol. I bought it from a dealer in london uk and over there i had no problems even when the temp was 0....



Quote:
Originally Posted by Obrfso View Post
Hi Guys,



When i start my m3 in the morning, only when cold engine, the revs are jumping from 1500-500 rpm...They cant stay stable... After few seconds it stops and everything is fine... It happens only when cold engine..


Do you know why it could be?



Thanks alot!!!
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      03-17-2013, 03:47 PM   #40
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Hi!!


I dont honestly think it is the problem with petrol. I had the same problem but as i can see you are on the early stage. Soon it will become worse and worse. Solution? replacement of ICV. in my case it helped.

good luck!
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      06-05-2015, 09:06 PM   #41
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For some reason this thread isn't jumping to page three...Did you ever fix this?

Thanks.

Update:

Oh...There was no page 3.
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      06-06-2015, 03:36 AM   #42
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But you did bump it to page one overall. Lol
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