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2Addicts | BMW 2-Series forum Technical Topics DIY and Coding Discussions Help needed quickly...I think I f***ed up my car

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      08-02-2016, 07:54 PM   #1
drivethemachine
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Help needed quickly...I think I f***ed up my car

So I went to code a minor thing (an ASD option) and through an unfortunate mis-click in E-sys, I ended up clicking "Code" on the DME2 unit.
Engine shut down and when I restarted it I'm getting Drivetrain malfunction and fuel system malfunction messages. Then I tried code default values but that didn't fix it either.
I'm so freaking out...
Can somebody help...please???
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      08-02-2016, 08:08 PM   #2
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It could have been DME when I clicked on it by accident. Now I don't see DME, I see DME2 and no cafd activates in that group.
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      08-02-2016, 09:22 PM   #3
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OK, I think I managed to fix it.

Instead of deleting/masking out this thread I'm going to leave it here in case it helps others in the future. Or at least learn from my stupid mistake.

First things first, there is just one DME group and it's called DME2. No more confusion about that.

So,
I was reading this thread which suggested clicking the Detect CAF for this SWE button. Unfortunately in my case, this button was grayed out, and I had no CAFD entry in the DME2 group.
Then I proceeded to Load SVT, and browsed to my backup from last year (lucky I had one).
That magically inserted the missing CAFD into the group, then I right clicked and hit Code. (During this time, I had my engine off and sourced power from my truck via a jump cable.)
At the end of this, I was left with a simple Check Engine light.
So I disconnected the whole E-Sys rig and hooked up my generic OBD2 diagnostic tool and saw a U1187 error code. (I think it means something like "primary ID missing".) I cleared this error code and everything seems fine now, after complete restart.
I hope the error code was just from memory and it won't come back.

I may have dodged this bullet, fingers crossed.

Moral of the story: read twice, click once.
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      08-02-2016, 10:17 PM   #4
pikcachu
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Quote:
Originally Posted by drivethemachine
OK, I think I managed to fix it.

Instead of deleting/masking out this thread I'm going to leave it here in case it helps others in the future. Or at least learn from my stupid mistake.

First things first, there is just one DME group and it's called DME2. No more confusion about that.

So,
I was reading this thread which suggested clicking the Detect CAF for this SWE button. Unfortunately in my case, this button was grayed out, and I had no CAFD entry in the DME2 group.
Then I proceeded to Load SVT, and browsed to my backup from last year (lucky I had one).
That magically inserted the missing CAFD into the group, then I right clicked and hit Code. (During this time, I had my engine off and sourced power from my truck via a jump cable.)
At the end of this, I was left with a simple Check Engine light.
So I disconnected the whole E-Sys rig and hooked up my generic OBD2 diagnostic tool and saw a U1187 error code. (I think it means something like "primary ID missing".) I cleared this error code and everything seems fine now, after complete restart.
I hope the error code was just from memory and it won't come back.

I may have dodged this bullet, fingers crossed.

Moral of the story: read twice, click once.
Nice save.

You never ever click "code default values"
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      08-02-2016, 10:18 PM   #5
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Quote:
Originally Posted by drivethemachine View Post
I ended up clicking "Code" on the DME2 unit...Then I tried code default values but that didn't fix it either.
I'm glad it worked out, but did you even read the coding cheat sheet thread? http://www.2addicts.com/forums/showthread.php?t=997749

Quote:
Originally Posted by pikcachu View Post

READ IMPORTANT NOTES:

1) NEVER click "Code Default Values" it can reset important stuff and car might not start and need to get towed to the dealer to fix the software
2) Make sure you click "Code FDL" and not "Code" (clicking code will reset the car to the factory setting erasing all the FDL coding for the selected ECU)
edit: beaten to the punch by the guy I was quoting, dangit.
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      08-03-2016, 02:52 AM   #6
Questofthetune
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Did the same thing a few days ago haha, if you have any lingering issues they should clear up in a day or two. Took a bit for my errors to clear.
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      08-03-2016, 06:46 AM   #7
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Quote:
Originally Posted by Beartato
Quote:
Originally Posted by drivethemachine View Post
I ended up clicking "Code" on the DME2 unit...Then I tried code default values but that didn't fix it either.
I'm glad it worked out, but did you even read the coding cheat sheet thread? http://www.2addicts.com/forums/showthread.php?t=997749

Quote:
Originally Posted by pikcachu View Post

READ IMPORTANT NOTES:

1) NEVER click "Code Default Values" it can reset important stuff and car might not start and need to get towed to the dealer to fix the software
2) Make sure you click "Code FDL" and not "Code" (clicking code will reset the car to the factory setting erasing all the FDL coding for the selected ECU)
edit: beaten to the punch by the guy I was quoting, dangit.
Yes, I read the cheat sheet...about a year ago.....and all I could remember was that the "Code default values" had special significance. The dumbass I am, in the heat of the moment I thought this must be the Fix everything magically button.
I drove it about 40 miles this morning and so far everything seems OK.
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      08-03-2016, 01:32 PM   #8
pikcachu
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Quote:
Originally Posted by drivethemachine View Post
Yes, I read the cheat sheet...about a year ago.....and all I could remember was that the "Code default values" had special significance. The dumbass I am, in the heat of the moment I thought this must be the Fix everything magically button.
I drove it about 40 miles this morning and so far everything seems OK.
You will remember next time now
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      08-03-2016, 05:42 PM   #9
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See TokenMaster's guide on changing displayed wording:

Post#10 & Post#11
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