is my AFM bad?

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  • ScHpAnKy
    E30 Mastermind
    • May 2009
    • 1573

    #1

    is my AFM bad?

    Car with the AFM plugged in sputters on hard acceleration halfway up the rev range and coasting without throttle and at idle.... runs pretty rich, but I'm pretty sure that's because I have no O2 sensor.

    afm unplugged causes the car to idle perfectly, but as soon as I step on the gas it dies... bad AFM? This is cold and hot

    91 318i | 87 535iS
  • 328ijunkie
    Forum Sponsor
    • May 2007
    • 3961

    #2
    Vac leaks prob. What AFM? Are you tuned for it?

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    • bernzpeed
      No R3VLimiter
      • Feb 2009
      • 3917

      #3
      Hit up Gregs///M to refurb your AFM.
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      • ScHpAnKy
        E30 Mastermind
        • May 2009
        • 1573

        #4
        Originally posted by 328ijunkie
        Vac leaks prob. What AFM? Are you tuned for it?
        afm that I pulled off the car I also pulled the motor out of... stock injectors, everything else, etc

        I highly doubt vacuum leak, every hose and gasket is brand new and cranked down, confirmed with ether as well as brake cleaner with no idle change

        91 318i | 87 535iS

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        • 10Toes
          Me Father Was A Tree
          • Jan 2008
          • 61222

          #5
          Maf

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          • ScHpAnKy
            E30 Mastermind
            • May 2009
            • 1573

            #6
            Originally posted by 10Toes
            Maf
            that too.

            91 318i | 87 535iS

            Comment

            • ScHpAnKy
              E30 Mastermind
              • May 2009
              • 1573

              #7
              Originally posted by bernzpeed
              Hit up Gregs///M to refurb your AFM.
              good call, also seriously sick alpine

              91 318i | 87 535iS

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