M42 maf

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  • sketchkid
    Advanced Member
    • Dec 2015
    • 165

    #1

    M42 maf

    Hey so I figured out today my new 2 week old flea bay MAF is bad. I don't want to do the $400 conversion what should I do?


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    91 318is "under construction"
    2007 328i - daily
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  • Gregs///M
    Forum Sponsor
    • Mar 2012
    • 2459

    #2
    Originally posted by sketchkid
    Hey so I figured out today my new 2 week old flea bay MAF is bad. I don't want to do the $400 conversion what should I do?


    Sent from my iPhone using Tapatalk
    First you should know the M42 does not use a MAF but an AFM. Its a huge difference. You can send your AFM to us to be refurbished. We've refurbished hundreds of AFM's with great success. You will noticed increased engine power, better idle, and ability to pass smog easier. Email me bavrest@gmail.com
    Owner - Bavarian Restoration
    BMW and European Electronics Repair and Restoration
    www.BavRest.com
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    • sketchkid
      Advanced Member
      • Dec 2015
      • 165

      #3
      well sorry, also the AFM is a brand new AM one i been using it for a 2 months. why would it need to be refurbished?
      91 318is "under construction"
      2007 328i - daily
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      • bmwman91
        No R3VLimiter
        • Oct 2004
        • 3128

        #4
        How, specifically, did you determine that the AFM is bad?

        Transaction Feedback: LINK

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        • jaredmac11
          Wrencher
          • Sep 2007
          • 253

          #5
          Originally posted by Gregs///M
          First you should know the M42 does not use a MAF but an AFM. Its a huge difference. You can send your AFM to us to be refurbished. We've refurbished hundreds of AFM's with great success. You will noticed increased engine power, better idle, and ability to pass smog easier. Email me bavrest@gmail.com
          I could be interested. Dont know if my AFM is in need of a refurb or not since I've never seen it run... but Im curious

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          • sketchkid
            Advanced Member
            • Dec 2015
            • 165

            #6
            Originally posted by bmwman91
            How, specifically, did you determine that the AFM is bad?


            From list of power when rev up and my mechanic guy


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            91 318is "under construction"
            2007 328i - daily
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            • 5Toes
              Banned
              • May 2010
              • 9836

              #7
              your mechanic could be wrong, yknow. loss of power huh?

              go through the basics (check TPS resistance, fuel system tests, air filter, ignition system)

              alot of people are quick to point a finger at whatever but those are the same people who buy new parts that dont solve their problem.

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              • sketchkid
                Advanced Member
                • Dec 2015
                • 165

                #8
                All of that stuff is brand new oem stuff I replaced everything


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                91 318is "under construction"
                2007 328i - daily
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                • jaredmac11
                  Wrencher
                  • Sep 2007
                  • 253

                  #9
                  Originally posted by 5Toes
                  your mechanic could be wrong, yknow. loss of power huh?

                  go through the basics (check TPS resistance, fuel system tests, air filter, ignition system)

                  alot of people are quick to point a finger at whatever but those are the same people who buy new parts that dont solve their problem.
                  Wouldnt it be plausible he's already gone through this stuff?

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                  • TobyB
                    R3V Elite
                    • Oct 2011
                    • 5168

                    #10
                    It's pretty easy to test the AFM with an ohmmeter- they're painfully basic, electrically.

                    I find it's a lot easier to do out of the car- Pelican Parts has a good writeup on it.

                    What I do,

                    t
                    now, sometimes I just mess with people. It's more entertaining that way. george graves

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                    • sketchkid
                      Advanced Member
                      • Dec 2015
                      • 165

                      #11
                      Cool, well today I get in to car it drove just fine well I only drove it 3 miles. I just curious what the hell it could be but only happen when I drive it hard.


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                      91 318is "under construction"
                      2007 328i - daily
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                      • 318kid
                        Grease Monkey
                        • Nov 2006
                        • 331

                        #12
                        It's difficult to diagnose a problem with such little information to go on. The M42 was pretty advanced for 1991 and there are a lot of things that can affect driveability and power. What all has been replaced and what all symptoms are you experiencing?

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                        • sketchkid
                          Advanced Member
                          • Dec 2015
                          • 165

                          #13
                          Well today, i figured out a new problem. i get under the car and i set incoming line to the fuel fiter shotting out gas so. I'm jack her up here in a few and replace.
                          91 318is "under construction"
                          2007 328i - daily
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                          • ahlem
                            Grease Monkey
                            • Sep 2008
                            • 369

                            #14
                            That will probably solve your problem. BTDT

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                            • sketchkid
                              Advanced Member
                              • Dec 2015
                              • 165

                              #15
                              Originally posted by ahlem
                              That will probably solve your problem. BTDT


                              Yea I hope so I just done know how to access the whole hose to change it


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                              91 318is "under construction"
                              2007 328i - daily
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