BMW engine fault code 171/170

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Uploaded by on Jun 5, 2010

The code translates into "Check, fuel supply system"
Anyone have any ideas?
Could it be a cracked hose somewhere?
Also, - what is that intermittent hissing noise every so often after revving a bit.
And is that loud hiss after I turn the engine off unusual?

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Autos & Vehicles

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Uploader Comments (DiarmaidGNR)

  • Turned out to be the air flow meter (MAF). Paid €200 for a new bosch one.

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  • 171 prufung kraftstoff-versorgungssystem

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