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Mass Air Mark VII????? Confused

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    #1

    Mass Air Mark VII????? Confused

    I was looking up the differences between a Mustang mass air harness, and a crown vic speed density harness on Fordfuelinjection.com and I noticed something. They list an ecm pinout of a Mass Air Mark VII 5.0. I'm confused, I thought that they never had Mass Air for a Mark VII. They list them from '88 to '92 yet, when I look for program codes they don't list a code for a Mark VII Mass Air.
    http://fordfuelinjection.com/5.0Lpinouts.html

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    http://fordfuelinjection.com/?p=17
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    #2
    Maybe California cars did, like 90-91 Cali vics/gmqs?
    Pete ::::>>> resident LED addict and CFI defector LED bulb replacements
    'LTD HPP' 85 Vic (my rusty baby) '06 Honda Reflex 250cc 'Baileys' 91 Vic (faded cream puff) ClifFord 'ODB' 88 P72 (SOLD) '77 LTDII (RIP)
    sigpic
    85HPP's most noteworthy mods: CFI to SEFI conversion w/HO upperstuff headers & flowmasters P71 airbox Towncar seats LED dash light-show center console w/5 gauge package LED 3rd brake light 3G alternator mini starter washer/coolant bottle upgrade Towncar power trunk pull underhood fuse/relay box 16" HPP wheels - police swaybars w/poly rubbers - budget Alpine driven 10 speaker stereo

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      #3
      there is no spoon
      all mk7's were speed density

      1986 lincoln towncar signature series. 5.0 HO with thumper performance ported e7 heads, 1.7 roller rockers, warm air intake, 65mm throttle body, 1/2" intake spacer, ported intakes, 3.73 rear with trac lock, 98-02 front brake conversion, 92-97 rear disc conversion, 1" rear swaybar, 1 3/16" front swaybar, 16" wheels and tires, loud ass stereo system, badass cb, best time to date 15.94 at 87 mph. lots of mods in the works 221.8 rwhp 278 rwt
      2006 Lincoln Town Car Signature. Stock for now
      1989 Ford F-250 4x4 much much more to come, sefi converted so far.
      1986 Toyota pickup with LSC wheels and 225/60/16 tires.
      2008 Hyundai Elantra future Revcon toad
      1987 TriBurner and 1986 Alaska stokers keeping me warm. (and some pesky oil heat)

      please be patient, rebuilding an empire!

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        #4
        Originally posted by Lincolnmania View Post
        there is no spoon
        all mk7's were speed density
        thanks...I was actually wondering about that. since MAF is supposed to be better, I wondered why Lincolns didn't get it. My concern was whether or not my DX3 computer would work in my car or not, but Iknow I don't have anything to worry about.
        sigpic


        - 1990 Ford LTD Crown Victoria P72 - the street boat - 5.0 liter EFI - Ported HO intake/TB, 90 TC shroud/overflow, Aero airbox/zip tube, Cobra camshaft, 19lb injectors, dual exhaust w/ Magnaflows, Cat/Smog & AC delete, 3G alternator, MOOG chassis parts & KYB cop shocks, 215/70r/15s on 95-97 Merc rims

        - 2007 Ford Escape XLT - soccer mom lifted station wagon - 3.0 Duratec, auto, rear converter delete w/ Magnaflow dual exhaust

        - 2008 Mercury Grand Marquis Ultimate Edition - Daily driver - 4.6 2 valve Mod motor, 4R75E, 2.73s. Bone stock

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          #5
          Mass Air Wiring Harness

          Ok then, I thought that it was too good to be true. Because it looked like all I had to do was add two wires to the harness and not have to be bothered with anything else lol.

          I made the harness for the Mass Air sensor, just need the computer and a little help from you guys so I can install it properly.
          So anyway, I was looking at the Mustang mass air pin out. And here's a few things that I'm confused about. Pin #19 calls for a Fuel Pump Monitor. Vic doesn't have one, or at least that's what it shows on fordfuelinjection.com What does that involve? Also, the table shows that there is no input for the BOO switch. I'm confused about that.


          Also, where would I tie in the 12 volt power source for the sensors hot wire? It says on the site to tie into the relay for the heaters for the O2 sensors. But I don't have a relay for that. I checked the EVTM. It's wired into the ignition switch.


          Other than that everything makes sense, Thermactor Air Diverter solenoid, is moved from Pin #11 to Pin #32 and Thermactor Air Bypass solenoid is moved from Pin #51 to Pin #38. MAF signal is put on Pin #50 and MAF return on Pin #9.

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            #6
            :bump:ity :bump:

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              #7
              did you find out about Pin #19 for a Fuel Pump Monitor.im doing mass air soon

              thanks

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                #8
                Tie it to the switched side of the relay, the side that goes to the fuel pump itself. Its not real important, but if the wire is not connected you get a code about secondary fuel pump circuit failed. Engine runs fine though.
                86 Lincoln Town Car (Galactica).
                5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

                91 Lincoln Mark VII LSC grandpa spec white and cranberry

                1984 Lincoln Continental TurboDiesel - rolls coal

                Originally posted by phayzer5
                I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

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