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Old 01-28-2013, 08:17 AM
ninetyseven1 ninetyseven1 is offline
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Location: Lewes
Join Date: Jun 2012
Posts: 83
Mein Auto: 1997 540i
Originally Posted by ninetyseven1 View Post
a bad MAF could cause this too.
Unplug the MAF and drive it and see if you still hear knocks. Keep in mind though that when coming to a stop your car could stall out with a disconnected MAF sensor. Also, your traction control will not function.
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