Intake setup back on the car left with a question

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  • Juevo
    Noobie
    • Sep 2023
    • 29

    #1

    Intake setup back on the car left with a question

    So Ive been taking my time doing some work on my B25, new injectors and a new IM gasket. is there anything special i need to do before i start it up next? like charging the fuel system since there isnt any in the rail?
  • Panici
    Moderator
    • Dec 2009
    • 2316

    #2
    You can cycle the key 3-4 times to prime the fuel system. Might be able to jump a relay or similar to keep the fuel pump on full time if required for testing.

    Good practice to inspect for any fuel leaks with the system primed before you fire it up. Use a flashlight to inspect hose connections, fuel injectors.

    Verify vacuum lines to the FPR, brake booster, etc.


    '87 BMW E30 325is Turbo

    '99 BMW E36 M3 - - - '98 BMW E36 328i

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    • MrBurgundy
      R3V Elite
      • Mar 2012
      • 5300

      #3
      Fuel pumps do not prime with ignition on with motronic 1.3. The fuel pump is commanded only with a CPS signal

      just crank it and it should start up
      Current Collection: 1990 325is // 1987 325i Vert // 2003 525i 5spd // 1985 380SL // 1992 Ranger 5spd // 2005 Avalanche // 2024 Honda Grom SP // 2024 Yamaha XSR700 // 2024 Jeep Gladiator Rubicon

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