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      04-04-2010, 05:27 PM   #8
Mike@N54Tuning.com
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Drives: 2007 335i, 2015 M3
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Quote:
Originally Posted by Belarus View Post
JB3 software corruption possibility. Try to re-burn/re-load software on to chip...

Had a similar issue few days ego by the sounds of your description when I was updating to the latest beta release and corrupted/deleted software on JB3. The car would not start and when it did it idled very rough, threw CEL and LIMP.... After re-loading the software the problem went away...

Good luck in getting it resolved.

PS even if you try to switch to MAP 0 it would still run like shit, until I re-loaded the software.... Which was certainly an eye opener to me, since I would of expected JB3 would go into total by-pass mode with corrupted or unloaded software...
If you're uploading firmware and it fails to load then yes definitely don't start the car. The interface will give you the same warning.

"JB3 is currently without firmware. Starting the motor will result in a long crank, multiple check engine lights, and will not operate properly. You must upload firmware before attempting to operate the vehicle."

mike
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