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My car is running rough especially in the morning when it is cold.

(2001 BMW 740iL)
in Coudersport, PA on November 15, 2012
Replaced MAFS and used dry gas, but is still running rough. What else could this be?
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Popular Answer
on November 15, 2012
possible control issue
on March 29, 2014
Your throttle positioning sensor could cause a rough or hard idle as well
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