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5-Series (E12,E28, E34, E39, E60)Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)
My 1990 525i is only running on cyl. 1,3,5. There is spark at all plugs. Noticed excessive fuel in cyl 2,4,6 when doing compression check (cyl 1,3,5@120 ; cyl2,4,6, @ 150) anyone any ideas?
I found the problem to be with the fuel injector wiring harness. The 7 pin plug under the intake manifold that connects the fuel injectors and temp. sensors. 3 of the pins that connect the fuel injectors had become corroded.
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