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Old 10-22-2012, 06:09 AM
joshtimber joshtimber is offline
Location: India
Join Date: Oct 2012
Posts: 4
Mein Auto: BMW
Can you hear the fuel pump spin up? Your description indicates that the engine sometimes fires while cranking but then stops firing when you stop cranking. If so, that indicates a problem with the relay that supplies the fuel pump. Specifically, with the signal that the relay needs from the engine control module that tells it that there are no problems and it is OK to activate the fuel pump. I have seen a few posts on BMW forums with problems in this area.
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