03 cobra engine swap???

331power

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I am in the process of swapping an 03 cobra engine into a buddies 99 cobra. We used the 03 harness. Question is what do I do about the computer??? To get this thing fired up??
 

Ironhand

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Either swap the computer with a stock 03-04 Computer(which may or may not work) or reuse the 01 Cobra computer and have it custom tuned before it is fired..

The reason why I said it may or may not work is because it may not fire with a swapped ECU if you dont fix the PATs system or turn it off. A Ford dealership can fix it but cant turn it off. A good tuner can though in a custom tune. Which is always recommended regardless.
 

joeschmoemmix

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I used the 99 harness and just modified it a bit to work. I kept the stock 99 computer, and the tuner did his magic with the computer.
 

kxt

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^I agree...keep the '99 harness and ECU
 

notchstang92

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So much easier to just modify your original harness to work. You can buy the pigtail kits from Ford and then you just your stock computer and have a tune done.
 

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