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      09-12-2009, 05:57 PM   #23
Roman@ESS
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The only thing an aftermarket tune could do to cause a limp mode on this car would be to have the torque limits set incorrectly. Any issue outside of that is hardware failure related.
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      09-12-2009, 10:43 PM   #24
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Quote:
Originally Posted by FStop7 View Post
So one car that's had this problem has Powerchip tuning

Another car has ESS

And another car has GIAC

This is a little concerning.
which GIAC car are talking about? Who's car?
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      09-12-2009, 10:54 PM   #25
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Quote:
Originally Posted by Eugene-TAIWAN View Post
which GIAC car are talking about? Who's car?
Your car... or did you remove the GIAC flash?
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      09-13-2009, 12:42 AM   #26
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Quote:
Originally Posted by Rom3n View Post
The only thing an aftermarket tune could do to cause a limp mode on this car would be to have the torque limits set incorrectly. Any issue outside of that is hardware failure related.
Thanks for the information - do you know how torque limit is actually monitored?
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      09-13-2009, 02:34 AM   #27
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Quote:
Originally Posted by FStop7 View Post
Your car... or did you remove the GIAC flash?
no no, my car has a huge problem with the DSC system. The entire ECU needs to be changed and I don't know if it has to do with my pwr loss. Bu the car lost all DSC function ABS, Crusie control and auto handbrake on a hill. People tell me is will cause a loss in power because the ecu notice a loss in safety. Is it the actual reason for loss in pwr I don't really know, but I have to get all problems fixed first before I can pin point if it is the ICV or the fuel soenoid.
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      09-13-2009, 12:07 PM   #28
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And exactly what is causing it? I am suppose to get a Powerchip tune in a month, and do not want this to happen to my car. Resetting my ECU after a tune will be a major pain to get my car reflashed by Powerchip.
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      09-13-2009, 03:22 PM   #29
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Quote:
Originally Posted by Eugene-TAIWAN View Post
no no, my car has a huge problem with the DSC system. The entire ECU needs to be changed and I don't know if it has to do with my pwr loss. Bu the car lost all DSC function ABS, Crusie control and auto handbrake on a hill. People tell me is will cause a loss in power because the ecu notice a loss in safety. Is it the actual reason for loss in pwr I don't really know, but I have to get all problems fixed first before I can pin point if it is the ICV or the fuel soenoid.
Your lose of DSC, is due to the angle sensor in the steering wheel.
Did you do the BMW performace wheel in the same time as ECU?
If the steering angle sensor looses it center reference point. the dcs is deativated, an you loose cruise control and all that stuff.
i had that problem when i did the performance wheel install, had to get it recalibrated at the dealer.

Last edited by Edman951; 09-13-2009 at 04:38 PM.
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      09-13-2009, 04:07 PM   #30
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Quote:
Originally Posted by frankzlin79 View Post
And exactly what is causing it? I am suppose to get a Powerchip tune in a month, and do not want this to happen to my car. Resetting my ECU after a tune will be a major pain to get my car reflashed by Powerchip.
Resetting the ECU does not require a reflash.
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      09-13-2009, 08:49 PM   #31
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Quote:
Originally Posted by Edman951 View Post
Your lose of DSC, is due to the angle sensor in the steering wheel.
Did you do the BMW performace wheel in the same time as ECU?
If the steering angle sensor looses it center reference point. the dcs is deativated, an you loose cruise control and all that stuff.
i had that problem when i did the performance wheel install, had to get it recalibrated at the dealer.
$hit, that is what I told the dealer and they said not that can't be it. Did you felt a lose in power?
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      09-13-2009, 09:26 PM   #32
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Quote:
Originally Posted by Eugene-TAIWAN View Post
How did you find out about this problem???
My service rep told me, when i pick it up.
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      09-13-2009, 09:28 PM   #33
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I dont remember if it had a power lose.
It was the middle of winter during a 3 day storm here when it happened.
so wast really driving hard, specially with 10inch of snow on the road that day
I had it at the dealer the next morning after the performance steering wheel i had done miself.
See my post 18 here http://www.m3post.com/forums/showthread.php?t=159983
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      09-13-2009, 10:53 PM   #34
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Quote:
Originally Posted by Edman951 View Post
Your lose of DSC, is due to the angle sensor in the steering wheel.
Did you do the BMW performace wheel in the same time as ECU?
If the steering angle sensor looses it center reference point. the dcs is deativated, an you loose cruise control and all that stuff.
i had that problem when i did the performance wheel install, had to get it recalibrated at the dealer.

I did the steering wheel first. then the ECU
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      09-13-2009, 11:05 PM   #35
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Did you have the DSC malfunction after installing the steering wheel?
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      09-14-2009, 12:37 AM   #36
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Quote:
Originally Posted by Edman951 View Post
Did you have the DSC malfunction after installing the steering wheel?
yes, it happened after I got it installed but not right away. Maybe within a week,
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      09-14-2009, 11:33 AM   #37
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Quote:
Originally Posted by FStop7 View Post
So one car that's had this problem has Powerchip tuning

Another car has ESS

And another car has GIAC

This is a little concerning.
Do you have a link to the GIAC-equipped M3 expericing this? We have 0 reports of any vehicles entering limp mode.
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      09-14-2009, 09:23 PM   #38
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Quote:
Originally Posted by tom @ eas View Post
Do you have a link to the GIAC-equipped M3 expericing this? We have 0 reports of any vehicles entering limp mode.

Tom, I think he was talking about my car. But I don't think its the file. I think it has to go with me DSC failure and now its causing things like (footwell module) error and the car just doesn't seem to be as responsive
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      09-14-2009, 09:34 PM   #39
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Quote:
Originally Posted by Eugene-TAIWAN View Post
Tom, I think he was talking about my car. But I don't think its the file. I think it has to go with me DSC failure and now its causing things like (footwell module) error and the car just doesn't seem to be as responsive
Footwell module hosts a number of things, but I don't think it plays a part of how the DME functions.
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      09-14-2009, 09:46 PM   #40
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Quote:
Originally Posted by tom @ eas View Post
Footwell module hosts a number of things, but I don't think it plays a part of how the DME functions.
I don't it messes with the DME aswell but after my whole DSC ECU being broken and now just waiting for a new ECU the car just feels slow and it is I have timed myself on the vbox
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      09-15-2009, 01:58 PM   #41
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I got 4 malfunctions last night. (1) Engine malfunction - reduced power, (2) DSC malfunction, (3) DBC malfunction, and (4) start assist malfunction. Service tech at BMW San Diego thinks it is a DSC sensor malfunction. I'm taking it in tomorrow. I have Dinan exhaust and ECU. I'll let you know the results once thry fix it.
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      09-15-2009, 03:37 PM   #42
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Just out of curiosity, what are the build dates of these cars?
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      09-15-2009, 05:52 PM   #43
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Quote:
Originally Posted by kffighter View Post
I got 4 malfunctions last night. (1) Engine malfunction - reduced power, (2) DSC malfunction, (3) DBC malfunction, and (4) start assist malfunction. Service tech at BMW San Diego thinks it is a DSC sensor malfunction. I'm taking it in tomorrow. I have Dinan exhaust and ECU. I'll let you know the results once thry fix it.

Oh man, that is like the samething what happened to my car except that I never got a engine malfunction light. Let us know what happens at the dealer
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      09-15-2009, 05:54 PM   #44
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Quote:
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Just out of curiosity, what are the build dates of these cars?
Mine was built in 2007
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