Im helping brother finish this swap it was a donor 03 cobra motor with 27k, now motor of the car was running fine I drove it the same day after we pulled everything out. the swap was smoothly but car cranks but doesnt start? I was ussing the Gt dash harness but on the clushter showed "--------" and the theft light was blinking. Then I swaped out the Gt dash for the 03 cobra car does same it cranks but doesnt start and now the clushter doesnt show anything :shrug: Before I get asked I did research but no luck. and also car does have 03 Cobra gas tank,My question is since the Gt dash showed more activity sings could I just have my tuner send me a tune and disable the PATS and maybe turn on.
I think im stuck..03 Cobra Swap on 03 Gt
- Thread starter FastyJohn03
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PATS was my first thought as well. So you used all the cobra underhood wiring etc? Is the fuel pump cycling on when you turn the key on? Did you swap the steering column as well? Didn't some of these fords need the chipped key that talks to the anti theft to start?
sounds PATS related to me. I thought the key, whatever the piece in the column is and the computer all had to match up but Im really not sure
Yes I switch the steering column and I also did the key of the cobra. The only thing that wasn't changed was battery junction box
And the wiring from floor mat to the back, but I'm ussing 03 cobra hat and pumps.
yes im using the key,cluster and pcm of the 03 cobra
id have the tuner send you a no pats tune personally, if for nothing else but to trouble shoot then if you want pats to work you can figure it out later
Update: I just had my tuner send me a base tune and the PATS disabled, but when I want to plug the sct it says ecm fail... what those that now mean
Make sure everything is properly grounded. Including the ecm. I had similar starting problems that you describe and came to find I missed hooking up a ground wire.
Is your sct tuner unlocked/married to the engine? Is the pcm grounded?
^ thanks Ya going to check tomorrow and see what can be done.
Good point about the SCT tuner being married. If it was the same tuner you used with the GT computer it is still married to that computer and will not work with the 03-04 computer. You will either need to somehow hook up enough wiring to unmarry it or send it in to SCT and have them do that for you if that's the case.
The tuner can turn it off with no problem. OP, def sounds like your on the right track.
When my cobras dash displayed dashes and the theft light flashed, my pcm was bad and had to be replaced. I tried to disable the pats at first, to no avail.
My engine had been out for a couple years, when I put the new one in was when the problem occurred.
My engine had been out for a couple years, when I put the new one in was when the problem occurred.
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Update; I notice that my fuel pumps where not turning on,So I unplug the fuel line hose and crank it and it wasn't sending fuel to motor.. So now I'm going to see if i can wire the power wire fuel to the 03 cobra harness, but notice 03 cobra power wire harness is green with yellow and the Gt harness its grey-ish with pink/reddish.. But up front the harness power it looks smaller then the back? Might be easyer if I just buy 03 cobra body harness then cutting all these wires. Will update and see if I can try ad see if that's the issue:
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That might be the reason it won't fire but not the ------ issue. I think you've got a few bugs left to work out. Try to get the comp correct first, load the tune, then listen for the FP to kick on. Once you've eliminated one area (pats) move onto another (wiring).
^ well now part of it that's fixed know it now shows the miles but won't let me upload the tune it says ECM fail.. Theirs a wire coming from the harness (03 cobra) that I don't know where it plugs two? Their green with yellow I think thats fuel pump power wire but don't know if it has todo with not letting me upload that tune or fail to ECM .
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It can be turned off, I had Rick do it on my old SB cobra. I assume we can do it in PRP but I never looked my new terminator is low mileage enough to not be worried about it at this point. Although if you do it the theft light will flash like crazy when driving so you'll want to remove the bulb.
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