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      06-10-2016, 08:18 AM   #8
MpowerMike
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Drives: 2012 IB BMW M5
Join Date: May 2014
Location: T.O. Canada

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Quote:
Originally Posted by 13M5F10 View Post
Did your car ever run right with the tune? Possible you need to gap the plugs but could be likely an issue with the tune. If it started after the tune, flash back to stock and see what happens.

If car was fine in the ESS tune and this started happening out of the blue, check coil packs and then injectors.

MCarsFan can guide you.
Car ran fine with bms stage 1 and ess tune , it's only at high speeds full throttle redline 4th 5th gear pulls it does that. Spark plugs never got gapped.
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