MAF issue

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  • stegosaurus
    Grease Monkey
    • Aug 2008
    • 367

    #1

    MAF issue

    So the other day it was really cold out (10deg.F) and after startup my idle would drop like it was going to stall, and then kick back up.

    Not a problem when I was driving.

    I had been stopped at a light and when shifting from 1st it took off into the 4k rpm range when i pushed in the clutch.

    I let the car roll back down the hill into a bus stop and it wouldn't start.

    Had it towed and about an hour later it started, but idle would fluctuate between smooth and stalling.

    I'm thinking this is an MAF issue, what do you think? M42 with 151k on it.

    What can I do to fix this? Only place I can get one is from the stealer for 560+, Realoem doesn't have it, bav is same as the ship. Anything aftermarket?
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  • der affe
    Moderator
    Technical
    • Dec 2005
    • 8452

    #2
    do you have a MAF (as in aftermarket...miller or splitsecond ) or is it stock?
    seien Sie größer, als Sie erscheinen


    Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.

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    • stegosaurus
      Grease Monkey
      • Aug 2008
      • 367

      #3
      Stock unit, AFAIK never been replaced.
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      • der affe
        Moderator
        Technical
        • Dec 2005
        • 8452

        #4
        OK, can't help you there.

        BTW what you have is an AFM (air flow meter) not a MAF (mass air flow).
        you confused me a little
        seien Sie größer, als Sie erscheinen


        Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.

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        • stegosaurus
          Grease Monkey
          • Aug 2008
          • 367

          #5
          Oh really? I was confused about this myself. I thought it was a mass air flow because on realoem its referred to as a "volume air flow sensor." My mistake, but then the question still stands, is there an aftermarket option for this, or do I pony up the $600 for the dealer.
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          • der affe
            Moderator
            Technical
            • Dec 2005
            • 8452

            #6
            how is you IAC?
            i would just look for a good used one if you AFM took a crap.
            for close to $600 you could convert to a real MAF IIRC
            seien Sie größer, als Sie erscheinen


            Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.

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            • stegosaurus
              Grease Monkey
              • Aug 2008
              • 367

              #7
              Is there any real advantage in converting w/o a boosted setup?

              Edit: IAC, O2, hoses, FPR are all in good shape. Car still throws 1215.
              Last edited by stegosaurus; 12-11-2008, 06:56 PM. Reason: forgot something
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              • der affe
                Moderator
                Technical
                • Dec 2005
                • 8452

                #8
                i am running a splitsecond kit with Dbilas ITBs on a big cam'ed 2.7 stroker, so for me, yes.

                with out a bunch of other mods you wont see a big difference, but if you are hell bent on spending that kind of $$.......
                seien Sie größer, als Sie erscheinen


                Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.

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                • stegosaurus
                  Grease Monkey
                  • Aug 2008
                  • 367

                  #9
                  Oh, I can definitely do without spending $600 on an oem replacement piece, but I was under the impression that miller was more for turbo setups. I'll give splitsecond a look. Thanks.
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                  • der affe
                    Moderator
                    Technical
                    • Dec 2005
                    • 8452

                    #10
                    check your PM
                    seien Sie größer, als Sie erscheinen


                    Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.

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                    • alpinweib30
                      Advanced Member
                      • Nov 2008
                      • 135

                      #11
                      junk yard
                      86 325e limo
                      build thread
                      http://r3vlimited.com/board/showthread.php?t=126204

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                      • stegosaurus
                        Grease Monkey
                        • Aug 2008
                        • 367

                        #12
                        PM'd, thanks a bunch.
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