Quote:
Originally Posted by Yozh
Vac lines will not help you with 4580, 4530 they will but not 4580. Most likely your fuel flow control valve on the high pressure fuel pump. It’s not s bad part to replace. About $100 of you get a Bosch part and not a BMW branded one. Three torx bolts. You can do without removing the manifold if you got long enough torx bits.
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Thanks Yozh! I'll give it a try this weekend. Does anyone have a part number for said control valve? It seems there are several similarly named parts available...