Mass Air Conversion Question

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  • CompOrangeFox
    I gotta have more cowbell
    • Jul 2004
    • 614

    Mass Air Conversion Question

    I've got the computer and the meter but I need the wiring. Can't I get just the connector for the meter and splice that into my current harness or should I just try to find a complete harness. This is on an 87 GT vert w/a 347
  • theduckylittle
    Duck uber Alles
    • Jan 2003
    • 5435

    #2
    You can do the splice. Just take a look at the pinouts...


    I've done a similiar swap when installing the Turbo-2.3 electronics into a N/A-2.3 Car... I had to add an air-meter and move a few pins around.

    If you've got any questions -- just post!

    -Duck
    1992 Mazda MX3: L3 100 BigYmp.

    Comment

    • theduckylittle
      Duck uber Alles
      • Jan 2003
      • 5435

      #3
      Oh, figured it out...

      Swap

      S/D pin --> MAF pin
      11 --> 32 (TAD)
      51 --> 38 (TAB)

      Add pins
      9 - MAF RTN
      50 - MAF sig
      19 - FPM (no idea what this is)
      (You'll need to add a vehicle speed sensor too...)
      3 - VSS+
      6 - VSS-
      1992 Mazda MX3: L3 100 BigYmp.

      Comment

      • theduckylittle
        Duck uber Alles
        • Jan 2003
        • 5435

        #4
        Word, FPM = Fuel Pump monitor... there isn't one on a S/D car, and I'm not sure where or what the sensor is... so you'll either just have to ground the pin... hot wire the pin... or something... I'm too lazy to look up the nominal sensor reading right now...

        -Duck
        1992 Mazda MX3: L3 100 BigYmp.

        Comment

        • lilstang5O
          any pony power left out there?
          • Dec 2003
          • 9204

          #5
          MadMatt5oh- check this out for when ya convert your 88 5.0 to MassAir!
          Ride:
          '97 Mustang GT a.k.a. BLACK SUNSHINE!!

          Comment

          • theduckylittle
            Duck uber Alles
            • Jan 2003
            • 5435

            #6
            FYI on the Vehicle speed sensor. It's located "on" the speedo Cable. So I'm not sure what needs to change/be modified to make this work. To be perfectly honest, I'd probably just try it without the Speed-sensor and see how she does. I don't know the inner-workings of the A9L-series very well but I think it's still old enough to where the Vehicle speed doesn't effect the fuel table...

            -Duck
            1992 Mazda MX3: L3 100 BigYmp.

            Comment

            • Outrun
              Answer The Call
              • Aug 2003
              • 20755

              #7
              I did the conversion on my 86. I bought a 4 wire harness that goes to the meter to the cpu. I do not have the vehicle speed sensors on the drivers side kick panel for some reason. Could it be because I have an 86? Who knows. Follow this article to the T, and you will have it done in no time. I think it took me 6 hours, off and on, and that's only because I check every wire that I am moving or splicing about 10 times.

              Comment

              • cmccolley
                I gotta have more cowbell
                • Jul 2004
                • 614

                #8
                Does anyone know where to get the EEC connector pins referred to in the above link?

                Comment

                • theduckylittle
                  Duck uber Alles
                  • Jan 2003
                  • 5435

                  #9
                  Originally posted by cmccolley
                  Does anyone know where to get the EEC connector pins referred to in the above link?
                  From any EEC computer... if anything go to the junkyard and cut the "60-pin" connector from any car...

                  -Duck
                  1992 Mazda MX3: L3 100 BigYmp.

                  Comment

                  • cmccolley
                    I gotta have more cowbell
                    • Jul 2004
                    • 614

                    #10
                    duck

                    thanks for all of the info, very helpful

                    Comment

                    • Video_Master
                      Kickin it Hybrid Style
                      • Jun 2003
                      • 10524

                      #11
                      Ducky ROXORS!!!

                      Comment

                      • Outrun
                        Answer The Call
                        • Aug 2003
                        • 20755

                        #12
                        Originally posted by theduckylittle
                        From any EEC computer... if anything go to the junkyard and cut the "60-pin" connector from any car...

                        -Duck
                        Or you could just go to any Ford Dealership and pay 1.50. Or I suppose if you want to save that whole 1.50 you could go to a junkyard and dick around with that wiring harness.

                        Comment

                        • theduckylittle
                          Duck uber Alles
                          • Jan 2003
                          • 5435

                          #13
                          Originally posted by Outrun
                          Or you could just go to any Ford Dealership and pay 1.50. Or I suppose if you want to save that whole 1.50 you could go to a junkyard and dick around with that wiring harness.
                          (shrug) Wire cutter + 10 mm wrench... not really anything complicated. Most U-pulls will have some car with the computer already out anyway.

                          -Duck
                          1992 Mazda MX3: L3 100 BigYmp.

                          Comment

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