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Posted on Dec 29, 2010
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It runs rough cold and cuts off - 2001 BMW 325

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Dan Doherty

Dan Doherty

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  • Posted on Dec 29, 2010
Dan Doherty
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Hi

2 very common faults on this car, firstly check the air pipes to the throttle housing these often rip or tear on the underside, ironically on the strength line that is mean to prevent it.

Secondly the MAF sensor or air mass sensor will most likely need either cleaning or replacing, this regulates the air to fuel mix, worse when cold fine when warm but often you loose some response in the throttle when you accerate.

Hope this help, if you need more info get back to me.
Regards

Dan

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