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Thread: 1988 e30 no fuel PROBLEM

  1. #1
    Join Date
    Apr 2017
    Location
    San Jose, California,
    Posts
    2
    My Cars
    1988 325i, 2012 Outback,

    1988 e30 no fuel PROBLEM

    Hello to all more mechanically inclined than I, I really need your help!

    Long story short, I have a 1988 4 door 325i with an M20B25 engine and an autotragic. The vehicle was my daily commuter before all of a sudden the vehicle was no longer starting. After checking everything it became very obvious it was not getting any fuel to the rail.

    Things I have done/replaced:
    • Replaced all fuel relays with correct Bosch relays with correct parts #s (getting 13.5 at pin 30)
    • Replaced fuel Pump with OEM BMW Fuel pump, correct parts # (fing ouch man , it was pricy) (getting 13.4 at fuel pump)
    • Replaced fuel filter and short hoses (everywhere) with Bosch filter
    • Replaced CPS with OEM BMW CPS, correct parts # (air gap is 1 mm)


    So after all this fuel pump is still not engaging and I am frustrated as all hell. Would love to know any ideas or what else could be an issue?

  2. #2
    Join Date
    Jan 2010
    Location
    Estacada Oregon
    Posts
    387
    My Cars
    E30M3 X2 R100GS/PD R60/5
    If your getting 13.5v at pump and it doesn't run you must have a ground issue to pump or connection problem in pump assembly

    Sent from my SM-G360V using Tapatalk
    Angus
    88 E30M3 X2 (1 summer/1 racetrack)
    89 325IX (winter)
    92 R100GS/PD

  3. #3
    Join Date
    Apr 2017
    Location
    San Jose, California,
    Posts
    2
    My Cars
    1988 325i, 2012 Outback,
    I have looked around under the pan for the ground and nothing seems obviously wrong, any locations I should focus on? Thank you for the quick replies.

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