Fox 347 Combo Mix Up.

Discussion in '1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-' started by thegerm1, Jul 18, 2014.


  1. thegerm1

    thegerm1 New Member

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    I tried the test light method, it didn't work. I think I'm going to have to look at the ECM. Car was a 4 cyl car. Previous owner said he put a v8 harness in it. He wasn't sure what the ECM came out of.
    #21
  2. madspeed

    madspeed Colonel Mustard Mod Dude Founding Member

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    check the ecm to see what label it is, that will help identify it
    #22
  3. madspeed

    madspeed Colonel Mustard Mod Dude Founding Member

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    I would go kick that previous owners butt, hacked up 4cylinder to v8 conversion and a mismatched v8 :nono:
    #23
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  4. thegerm1

    thegerm1 New Member

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    Hmm I think this is the problem. [​IMG]
    #24
  5. thegerm1

    thegerm1 New Member

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    Car I replace the ECM with an automatic car ECM if it's a manual?
    #25
  6. 2000xp8

    2000xp8 Mustang Master

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    Yes, the auto computer can go in a manual.
    #26
  7. Noobz347

    Noobz347 Stangnet Facilities Maint Tech... Er... Janitor Admin Dude

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    That's an SD computer.
    #27
  8. A5literMan

    A5literMan Mustang Master

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    Wtf?! No wonder it runs like crap! This car is the ultimate nightmare situation. Mismatched parts,shoddy wiring,wrong computer,and god only knows what else. Are you sure it is a 347 and not some crap 302?Sorry op but I have a feeling you got screwed on this purchase! Definetly need to get the computer swapped ASAP! Or sell it and start with a better starting point. I would be so ****ed at the PO!
    #28
  9. thegerm1

    thegerm1 New Member

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    I found another ECM under the passenger seat that is for an auto car. I swapped the computers. I got 24# injectors with the car and my buddy let me borrow before I buy his Trick flow track heat intake. I'm going to install them tomorrow and see if I can find a MAF that's setup for the injectors.
    I'm sure it's a 347. I have all the receipts....
    Hoping to be able to start this thing soon. Lol
    Last edited: Jul 25, 2014
    #29
  10. Detroiit

    Detroiit Active Member

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    its a speed density computer in a MAF car?
    #30
  11. thegerm1

    thegerm1 New Member

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    Yep. Not sure why but there was a A9P ECM under the passenger seat lol.

    Few pics
    [​IMG]
    [​IMG]
    [​IMG]
    #31
  12. Detroiit

    Detroiit Active Member

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    Looks like a race car on 16s nice!
    #32
  13. mikestang63

    mikestang63 Mustang Master

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    Nice catch Noobz. You are quite adept when sober.
    #33
  14. Noobz347

    Noobz347 Stangnet Facilities Maint Tech... Er... Janitor Admin Dude

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    Shhhhh... People might get the idea that I try to administer this forum while NOT under the influence. :nono:
    #34
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  15. mikestang63

    mikestang63 Mustang Master

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    LOL.. that reminded me of this classic - DR. Johnny Fever.


    http://www.hulu.com/watch/290
    #35
  16. thegerm1

    thegerm1 New Member

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    I just installed the computer, BBK MAF sensor for 24#, 24# injectors! trick flow track heat intake setup and the correct ECM in the car.
    I'm going to see if I can pull codes in a little bit.
    #36
  17. FoxMustangLvr

    FoxMustangLvr Mustang Master

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    Is the yellow hood with black stripes the hood that came with the car?
    #37
  18. thegerm1

    thegerm1 New Member

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    No just another hood I picked up with some parts. Hoping to paint it.
    #38
  19. thegerm1

    thegerm1 New Member

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    Well no codes were able to be pulled from the car.
    I started it up. It runs better but still seems like something is wrong.
    #39
  20. madspeed

    madspeed Colonel Mustard Mod Dude Founding Member

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    Location:
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    no codes at all? Not even the check code of 11? Is the Check Engine Light on when you turn the ignition to on?
    #40

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