need new ecu..help!!!!
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RandyStinchcomb
New Member
why can't you get one from your dealer by 3/15/07 and why are they nuts?
its ONLY going tobe aval thru a dealer, unless you want a used one or one out of a junk yard.
LaserRed01GT
Banned
A lot of the popular performance shops will have a few stock PCM's lying around. Try giving a few of them a call. If you don't have any luck, try the salvage yard or the dealership. Maybe do some searching on some of the classifieds on other websites.
What happened to your PCM?
What happened to your PCM?
RandyStinchcomb
New Member
well be carefull as 2003 is unique to a 2003 so you can't substitue another model or year
is your car an auto or stick?
it is a stick, my code is xsh1, do the 2003's only have this code, im under the impression as long as a get a computer with this code and the donor vehicle is a 5 speed i would be good?
RandyStinchcomb
New Member
XSH1 is replaced by a XSH2 and ONLY these 2 ECM's can be used in your car. I can get for you but your looking at @$420.00 for the ECM + a $100.00 refundable core charge.
LaserRed01GT
Banned
Well it's not quite that easy to compare the different PCM's by the PCM housing code or the year of the car. What's more important is the hardware platform type.
99's through 2001's use the MLC hardware platform and they are completely interchangeable with some tuning. The 2002's through 2004's use the MPC hardware and are also interchangeable with some tuning.
The PCM right now in my 2001 Mustang GT is out of a 2003 XSH1 code/ MPC-14G hardware type. I uploaded the tune file that was in my GIZ2/MLC-467 into the 2003 PCM, and a few tweaks later it worked perfect. Now granted interchanging different hardware platforms is a PITA but it can be done if you are familiar with calibrating/programming the Ford PCM's.
The 99-04 PCM's even all use the same PATS control function type C.
99's through 2001's use the MLC hardware platform and they are completely interchangeable with some tuning. The 2002's through 2004's use the MPC hardware and are also interchangeable with some tuning.
The PCM right now in my 2001 Mustang GT is out of a 2003 XSH1 code/ MPC-14G hardware type. I uploaded the tune file that was in my GIZ2/MLC-467 into the 2003 PCM, and a few tweaks later it worked perfect. Now granted interchanging different hardware platforms is a PITA but it can be done if you are familiar with calibrating/programming the Ford PCM's.
The 99-04 PCM's even all use the same PATS control function type C.
LaserRed01GT
Banned
That part number is indeed off a 2004, but you have to be careful because Ford used different hardware platforms within the same model years.
For example, on 2004 year models, in the middle of the year Ford switched from the MPC(15 C was the last one on that platform that I know of) hardware to the newer MP2 hardware. You need to contact that seller and ask him what the specific PCM code or hardware platform it is.
To make it easy on yourself and the shop doing the R&R, try to look for a PCM that is built on the MPC-14G hardware platform. Calibrating/Programming different hardware platforms goes beyond normal tuning skills and most techs probably wouldn't know how to do this. The car would run but, if they don't know what they are doing, they won't be able to get it right.
If you come across any other PCM's that you can get the part number or PCM code, I can look them up for you and let you know if it will be a direct swap.
This is a very good thread. A few months ago, I went to my SCT tuner to have a SCT flip-switch chip installed but my ECU wouldn't accept the chip.. When we would try to start it would just turn the fans on. It wasn't the chip either as we tried a brand new chip as well. We ended up having to flash the computer for just one tune.
First off, does anyone know why this would happen? Also could this be solved by replacing the ECU? If so, what part number would I need? The car is a 1999 Mustang GT w/ the T-45.
First off, does anyone know why this would happen? Also could this be solved by replacing the ECU? If so, what part number would I need? The car is a 1999 Mustang GT w/ the T-45.
LaserRed01GT
Banned
PCM's can have a mind of their own and they will do all sorts of weird stuff. Sometimes after a recalibration or re-flash upload to the EEPROM, the fans will come on and that's it, no start no nothing.
What that means when just the fans come on is that the communication somehow got hosed when your tuner was programming the chip. When you put the chip in, the PCM wasn't happy and it goes straight into what is called FMEM( Failure Mode Effects Management).
You probably just needed to take the chip back to the tuner and have him re-burn the tune.
Is the car running fine now?
PCM's can have a mind of their own and they will do all sorts of weird stuff. Sometimes after a recalibration or re-flash upload to the EEPROM, the fans will come on and that's it, no start no nothing.
What that means when just the fans come on is that the communication somehow got hosed when your tuner was programming the chip. When you put the chip in, the PCM wasn't happy and it goes straight into what is called FMEM( Failure Mode Effects Management).
You probably just needed to take the chip back to the tuner and have him re-burn the tune.
Is the car running fine now?
The chip was a used chip that I brought to him to have dyno tuned. When he put a tune on the chip and put it on the car, it wouldn't work. So he then tried his own brand new chip with a tune on it on my car and the same thing happened. So instead of just making the trip for nothing, I just had him flash the ecu. The car's ran great ever since, I'd just like the ability to have more than one tune with the flip of a switch or even send him the chip to have it reburned.
LaserRed01GT
Banned
Keep looking, I'm sure you'll find one. Randy is a good guy, but I just hate to see you have to pay for a new PCM if you don't have to.
so what your saying is the number on the upper left corner of the white tag on the ecu has to say mpc-??? for it to work on my car, i found another that says mp2-18c, but from what im understanding, the mp2 in that code indicates its the newer platform and wont work with my car...
after contacting the salvage yards, i came very close, according to them, the only totaled 2003 gt in maryland is an hour away and a automatic which isnt helping...hard to believe...anyway does anyone know the difference is the code where it says 3r3a-######-DB or a 3r3a######-DC, all the salvage yards asked me what mine was. Does that indicate a manual or automatic?
LaserRed01GT
Banned
It doesn't have to be the MPC hardware platform, but it would just make it much easier on you if you could find the same platform. Truly knowledgeable techs are hard to come by nowadays. MP2 is a newer platform that was introduced in the middle of the model year 2004.
3R3A is just the first part of the PCM part number and can be either the MPC or MP2 hardware platform. I would need the entire part number to cross reference it for you.
It doesn't matter if it's out of and auto or stick car. It will just have to be reflashed with the appropriate strategy.
