V8 ECU in a V6 Harness?

Discussion in '94-95 5.0 - Specific' started by JBCleary, May 23, 2007.

  1. JBCleary

    JBCleary New Member

    Messages:
    12
    Likes Received:
    0
    Joined:
    Apr 19, 2006
    I'm converting my 94 from V6 to V8 and want to know if a V8 ECU can be used with the V6 main harness ??? I know the engine harness needs to be changed and I have one from an 89 mustang. Was not sure on the ECU harness though.

    Thanks
     
  2. waltnono

    waltnono Active Member

    Messages:
    388
    Likes Received:
    0
    Joined:
    Jun 29, 2006
    Location:
    Southside Chicago
    Nope, I don't remember the number exactly but one is a 108 pin and the other is not. Somebody had a link on here to an online manual, if you could find it then you can compare the two.
     
  3. JBCleary

    JBCleary New Member

    Messages:
    12
    Likes Received:
    0
    Joined:
    Apr 19, 2006
    Afraid of that. Maybe i'll just use the 89 harnesses I rebuilt for another project and get an A9L ECU. Save me buying a 5L 94 harness.

    Thanks :)
     
  4. waltnono

    waltnono Active Member

    Messages:
    388
    Likes Received:
    0
    Joined:
    Jun 29, 2006
    Location:
    Southside Chicago
    What kinda trans do you have?
     
  5. JBCleary

    JBCleary New Member

    Messages:
    12
    Likes Received:
    0
    Joined:
    Apr 19, 2006
    It's a T5 which I'll either replace with a tko600 or rebuild to handle 600 ft lbs of torque. I don't even want to try the new engine on the trans the way it is now :noes:
     
  6. waltnono

    waltnono Active Member

    Messages:
    388
    Likes Received:
    0
    Joined:
    Jun 29, 2006
    Location:
    Southside Chicago
    Just go to the junk yard and get 1 off a mark VII since you don't have to worry about the AODE.
     
  7. waltnono

    waltnono Active Member

    Messages:
    388
    Likes Received:
    0
    Joined:
    Jun 29, 2006
    Location:
    Southside Chicago
    The harness
     
  8. JBCleary

    JBCleary New Member

    Messages:
    12
    Likes Received:
    0
    Joined:
    Apr 19, 2006
    So the harness on a 94/95 mark VII is the same as the mustang?

    Thanks
     
  9. waltnono

    waltnono Active Member

    Messages:
    388
    Likes Received:
    0
    Joined:
    Jun 29, 2006
    Location:
    Southside Chicago
    No but I hear its easy to just take a complete harness from a mark 7 along with the computer. Man I was just in the junk yard Fri. and they had a 96GT 5speed. I needed the AC compressor and the harness that goes to the upper o2 sensors and starter solenoid. That car still had the computer harness, I could pick it up 4 you but the dummies cut part of the engine harness. I think the plugs for the coil packs are missing. I was about to just buy the hole engine but I wouldn't had enough time to pull it before I went to work. Oh, I forgot that you have a 5.0 and now that I think about it all those mark 7 are speed density and doesn't use MAf. Here's a link to the pinoutshttp://fordfuelinjection.com/5.0Lpinouts.html Hope this helps you a bit.