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    Miller maf problem

    Hey guys ... I bought a used miller maf with a 19# 173 chip maf appears to be the correct one as I've seen through pix and checking the pn I'm pretty sure the maf it self is bad the car idles well and I can drive the car but I don't have mid throttle it just falls on its face. I do have full throttle though with no problems all the way up to redline. I called miller and the want $300 for a new maf?!? I found some on eBay for about $50-60 my other problem is I don't have the adaptor so I kind of just have the harness pushed into the pins , it seems to fit tight but I does look a little hack. My question is ... Is the maf it self my problem ? I'm also getting a cel for bad afm . Thanks for the help in advance guys !
    -His-
    87 e30 325i
    87 e24 m6
    05 e83 x3
    94 e32 740i 5spd
    -Hers-
    89 e30 325i
    18 f48 x1

    #2
    you have to cut pin 12 coming from the ecu harness and connect to pin 37 for the maf to work properly.. just making sure you did that :)

    those are detailed instructions

    R.I.P. 87 White 325is, Sold 85 Black 325e

    Comment


      #3
      Yea I did all the good stuff already lol
      -His-
      87 e30 325i
      87 e24 m6
      05 e83 x3
      94 e32 740i 5spd
      -Hers-
      89 e30 325i
      18 f48 x1

      Comment


        #4
        Originally posted by hendrixvodu View Post
        Yea I did all the good stuff already lol
        lol awesome.. umm some ppl have the plug on the maf backwards.. ive heard that used to be a problem..

        R.I.P. 87 White 325is, Sold 85 Black 325e

        Comment


          #5
          Nope got that the right way too lmfao when I first did the swap I put it on wrong I looked at a pick of another dudes car an switched the plug around and I was able to drive the car before It would braley run
          -His-
          87 e30 325i
          87 e24 m6
          05 e83 x3
          94 e32 740i 5spd
          -Hers-
          89 e30 325i
          18 f48 x1

          Comment


            #6
            hahah damn.. umm ik when i had mine i had the plug facing down rather than up and that caused me some issues. otherwise it seems the plug could be bad.. unless its just not getting good contact because of the way you have it connected.. it would be nice if you could test it with a good one..

            R.I.P. 87 White 325is, Sold 85 Black 325e

            Comment


              #7
              Well I ordered a new maf off eBay so we will see hopefully that works
              -His-
              87 e30 325i
              87 e24 m6
              05 e83 x3
              94 e32 740i 5spd
              -Hers-
              89 e30 325i
              18 f48 x1

              Comment


                #8
                New maf same problem any suggestions guys ? Is it possible my tps could be giving my new part throttle but I still get full throttle ?
                -His-
                87 e30 325i
                87 e24 m6
                05 e83 x3
                94 e32 740i 5spd
                -Hers-
                89 e30 325i
                18 f48 x1

                Comment


                  #9
                  testing the tps is super easy.. couldnt hurt to check it out..

                  R.I.P. 87 White 325is, Sold 85 Black 325e

                  Comment

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