Finding My 4 Digit Computer # for the Xcalibrator
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Joined: Dec 2004
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From: West Greenwich, Rhode Island
Finding My 4 Digit Computer # for the Xcalibrator
I just got off the phone with Anita from Troyer Performance to get my truck X out (very nice people). I am having trouble finding the computer number I looked in the pass. side door jam but the stickers numbers where unreadable. So she told me to look under the pass. side dash the find a sticker with the number and I could not find that either. Next she told me I would have to go to the main wiring harness to locate the number on the computer. Does anyone know how to get to it? I can't wait to get this puppy that everyone's been raving about. Thanks.
Former Sponsor
Joined: Mar 1998
Posts: 13,385
Likes: 4
From: Virginia
This is something that really needs to be gone over by phone -
I've typed all of this out here numerous times before, so this info is easily available by using the SEARCH feature.
I'm going to type this all out just this one last time - then anyone else that wants to know this will be told to call us or to use the SEARCH feature here, as you'll understand why as you read this post (simply because it takes far too long to type it all out!)
OK, here goes...................
The PCM's wiring harness connector in the 1997-2003 F-150 is under the hood, right behind the battery - the front 1/2" or so of the PCM passes thru an opening in the firewall right behind the battery, so the wiring harness can connect to the PCM there. Sometimes you will find a sticker there.
If you don't see the code sticker in any of those 3 places (passenger side door frame, back of the PCM or it's wiring harness connector (and that is rare), you'll usually have to remove the PCM from the vehicle to look at the big sticker that is on top of all Ford EEC-V PCM's.
To remove the PCM is simple, just 3 steps, 5 minutes.........
1.) Disconnect the battery (and make sure that any time you are disconnecting or reconnecting the battery, have your ignition keys OUT of the ignition).
2.) Go behind the battery with a 10mm socket & ratchet, and loosen the bolt that is in the middle of the wiring harness connector - it's just one bolt, in the center of that harness connector. As you loosen it, you will see the wiring harness slowly back off from the firewall (it's actually backing off the front of the PCM, but you can see the PCM just yet) - continue to loosen that bolt until you can detach the wiring harness from the PCM. Note: That 10mm bolt remains in the wiring harness, you will NOT remove it - just loosen it until you can detach the wiring harness!
3.) Now go into the cabin and you will see a black plastic pressure clip (U-shaped) that holds the PCM up against a mounting bracket - there is a little "tab" on that clip. Just pull that clip straight back, towards the back of the vehicle, and it will slide off (it may be a little bit snug, but it will easily come off when you pull it straight back). Then reach up above the passenger's kick panel and pull the PCM down & out - it'll drop right out into your hand, it's just that simple!
Putting it back in is done in the reverse order - you need to be careful not to bend any of the pins when you re-attach the wiring harness connector on the front of the PCM. Don't' worry, it's "shape-coded," so you can't put it on the wrong way, just be careful when you put it back on that none of the pins get bent over - it's not hard to do.
Once you have the PCM out, look at the big stocker on top of the PCM (it's on the right side, the way the PCM is mounted in these vehicles - but that's actually the top of the PCM) - that sticker will have a number of lines of writing on it - the 4-digit code will be 3 letters and 1 number, and will be printed in bold capitals, so it will stand out. If you have any problems determining the code, just write down everything exactly as it appears on that sticker and call us with that info, and we can tell you what the code is from that info. For example, 1997 4.6 automatics can be codes like IMP4, YSL2, etc., while 5.4 automatics can be codes like DJJ3, etc - there are hundreds of difference codes each model year, but always in that same format of 3 letters followed by 1 number.
Call us if you have any problems,
I've typed all of this out here numerous times before, so this info is easily available by using the SEARCH feature.
I'm going to type this all out just this one last time - then anyone else that wants to know this will be told to call us or to use the SEARCH feature here, as you'll understand why as you read this post (simply because it takes far too long to type it all out!)
OK, here goes...................
The PCM's wiring harness connector in the 1997-2003 F-150 is under the hood, right behind the battery - the front 1/2" or so of the PCM passes thru an opening in the firewall right behind the battery, so the wiring harness can connect to the PCM there. Sometimes you will find a sticker there.
If you don't see the code sticker in any of those 3 places (passenger side door frame, back of the PCM or it's wiring harness connector (and that is rare), you'll usually have to remove the PCM from the vehicle to look at the big sticker that is on top of all Ford EEC-V PCM's.
To remove the PCM is simple, just 3 steps, 5 minutes.........
1.) Disconnect the battery (and make sure that any time you are disconnecting or reconnecting the battery, have your ignition keys OUT of the ignition).
2.) Go behind the battery with a 10mm socket & ratchet, and loosen the bolt that is in the middle of the wiring harness connector - it's just one bolt, in the center of that harness connector. As you loosen it, you will see the wiring harness slowly back off from the firewall (it's actually backing off the front of the PCM, but you can see the PCM just yet) - continue to loosen that bolt until you can detach the wiring harness from the PCM. Note: That 10mm bolt remains in the wiring harness, you will NOT remove it - just loosen it until you can detach the wiring harness!
3.) Now go into the cabin and you will see a black plastic pressure clip (U-shaped) that holds the PCM up against a mounting bracket - there is a little "tab" on that clip. Just pull that clip straight back, towards the back of the vehicle, and it will slide off (it may be a little bit snug, but it will easily come off when you pull it straight back). Then reach up above the passenger's kick panel and pull the PCM down & out - it'll drop right out into your hand, it's just that simple!
Putting it back in is done in the reverse order - you need to be careful not to bend any of the pins when you re-attach the wiring harness connector on the front of the PCM. Don't' worry, it's "shape-coded," so you can't put it on the wrong way, just be careful when you put it back on that none of the pins get bent over - it's not hard to do.
Once you have the PCM out, look at the big stocker on top of the PCM (it's on the right side, the way the PCM is mounted in these vehicles - but that's actually the top of the PCM) - that sticker will have a number of lines of writing on it - the 4-digit code will be 3 letters and 1 number, and will be printed in bold capitals, so it will stand out. If you have any problems determining the code, just write down everything exactly as it appears on that sticker and call us with that info, and we can tell you what the code is from that info. For example, 1997 4.6 automatics can be codes like IMP4, YSL2, etc., while 5.4 automatics can be codes like DJJ3, etc - there are hundreds of difference codes each model year, but always in that same format of 3 letters followed by 1 number.
Call us if you have any problems,
Former Sponsor
Joined: Mar 1998
Posts: 13,385
Likes: 4
From: Virginia
OK, glad to hear you found it & happy to help!
It's a bit unusual to not find a code sticker on the back of the PCM, but it happens sometimes - and when it does, it can be frustrating to try to locate it without good step-by-step instructions - which is why we generally say it's easier to do that by phone. But every once in a while, it's worth typing it again just so it comes up quicker even in a SEARCH result here.
At any rate, glad you found it & good luck!
It's a bit unusual to not find a code sticker on the back of the PCM, but it happens sometimes - and when it does, it can be frustrating to try to locate it without good step-by-step instructions - which is why we generally say it's easier to do that by phone. But every once in a while, it's worth typing it again just so it comes up quicker even in a SEARCH result here.
At any rate, glad you found it & good luck!
