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Old 07-07-2014, 08:43 PM   #1
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PCM swap and tune or dealer?

I've got to replace the PCM on my 00 GT. From what I've been told, I can either take it to a shop or a dealer, or I can replace the PCM myself then use a tuner to disable the PATS. Am I understanding this right? If I am, does anybody have any advice or suggestions on which way I should go? I'd love to have the tune, but I don't really have extra $ right now. Just need to get the thing running again.
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Old 07-07-2014, 10:58 PM   #2
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People are probably recommending the tune because by the time you go through the hassle of getting the car to the dealer and then pay them to reprogram the PATS, you could almost pay for the tuner...

I'd still fix it right and then worry about the tune later.
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Old 07-08-2014, 09:04 PM   #3
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Quote:
Originally Posted by dmcgoy3 View Post
I've got to replace the PCM on my 00 GT. From what I've been told, I can either take it to a shop or a dealer, or I can replace the PCM myself then use a tuner to disable the PATS. Am I understanding this right? If I am, does anybody have any advice or suggestions on which way I should go? I'd love to have the tune, but I don't really have extra $ right now. Just need to get the thing running again.

Tuner the dealership charges 870 for a new PCM you can get a tuner for 300 and also if you got any mods it'll help your car run more efficient with them. One question why do you need a new PCM they don't just go unless you did something


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Old 07-10-2014, 06:45 PM   #4
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I messed it up by shorting a couple wires when I was checking voltage to my fuel pump. I've done several different tests and talked to a couple of different mechanics and everything points to a fried PCM.
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Old 07-10-2014, 10:29 PM   #5
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I messed it up by shorting a couple wires when I was checking voltage to my fuel pump. I've done several different tests and talked to a couple of different mechanics and everything points to a fried PCM.

If it's fried I don't think a tuner can do anything it might need to have a pcm


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Old 07-10-2014, 10:41 PM   #6
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I think you need a working PCM for your tuner to work anyways
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Old 07-10-2014, 10:47 PM   #7
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I think that OP was just wanting confirmation on the advice that he had recieved from others.
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Old 07-12-2014, 10:37 AM   #8
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I know I need a new PCM. I'm also aware that I can get one on my own. The question is should I then take it to a dealer to have it flashed or get a tuner and custom tune? I'm not sure which would be the better option. I don't have many mods, but I also don't have a lot of faith in my local dealership's service department.
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Old 07-12-2014, 10:18 PM   #9
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I know I need a new PCM. I'm also aware that I can get one on my own. The question is should I then take it to a dealer to have it flashed or get a tuner and custom tune? I'm not sure which would be the better option. I don't have many mods, but I also don't have a lot of faith in my local dealership's service department.

Like I said if the PCM is fried you can't tune it


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Old 07-12-2014, 10:26 PM   #10
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Quote:
Originally Posted by dmcgoy3 View Post
I know I need a new PCM. I'm also aware that I can get one on my own. The question is should I then take it to a dealer to have it flashed or get a tuner and custom tune? I'm not sure which would be the better option. I don't have many mods, but I also don't have a lot of faith in my local dealership's service department.

Like I said if the PCM is fried you can't tune it


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Old 07-12-2014, 11:36 PM   #11
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Originally Posted by dmcgoy3 View Post
I know I need a new PCM. I'm also aware that I can get one on my own. The question is should I then take it to a dealer to have it flashed or get a tuner and custom tune? I'm not sure which would be the better option. I don't have many mods, but I also don't have a lot of faith in my local dealership's service department.
Since you just have the two options...
If you don't trust the dealership, you'll have to buy the tuner and go that route.
I'd at least call the dealership and get a quote for them to do the PATS, and then figure out what it will take to get the car down there. That way you can compare which way will be the most budget friendly.
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Old 07-13-2014, 01:52 PM   #12
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I just had the same problem what I did was got new (old) PCM from eBay. Same car, same number on PCM as old one. Add after market parts and got dyno tune and they bypass the security(PATS) it's works fine. Only TWO problems are, first thrift sign will be keep flashing. 2nd car could start with wal-mart keys that's doesn't have the chip. Like OEM comes with it. Or any1 could hot wire now cuz it's bypass the security. That's the only two problems m having beside that noting at all and I believe every mustang comes with alarm that's goes off when some1 opens a door and after bypass (PATS) it won't either lol if u have extra money I would reflash the PCM from dealer good luck hope this help


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Old 10-02-2014, 05:27 PM   #13
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So I got the problem fixed. I ended up taking the car to a shop where they diagnosed the problem as a bad PCM. They replaced it and reflashed it. Brought it home today. Everything seems to be in good shape now except for my wallet.
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Old 10-03-2014, 03:53 PM   #14
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Glad it worked out for you


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Old 10-06-2014, 02:18 PM   #15
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What was the final damage $? If you don't mind sharing

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Old 10-09-2014, 10:27 AM   #16
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About $800. That included a couple of diagnostics for unrelated issues also.


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Old 10-13-2014, 05:26 AM   #17
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Seems like it could have been worse. Thanks for responding

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