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      07-05-2013, 11:44 PM   #17
GrussGott
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Drives: 2018 M4 Comp Indv
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Quote:
Originally Posted by W Cole View Post
At this point I am 99.9% sure the idle issue is software

Any ideas?
Over the course of about 3 months that's what mine did ... then it trended into a rough idle, then more hesitation at low rpms - it would kind of pause, then it died during start up once, then a few days later I got all of the lights.

Turned out to be a failing bank 1 throttle actuator valve - they have to pull the manifold to get at it.

http://www.m3post.com/forums/showthread.php?t=769035
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