Computer Question
Thread Starter
|
New User
Joined: Jul 2007
Posts: 6
Likes: 0
Computer Question
I recently changed out my 4.2L with a 4.6L from a mustang. I am wondering what computer to run with this. The local parts store gives several different ones with different calibrations. Any help would be appreciated.
John
John
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 787
From: Simi Valley, CA
Originally Posted by gold101
I recently changed out my 4.2L with a 4.6L from a mustang. I am wondering what computer to run with this. The local parts store gives several different ones with different calibrations. Any help would be appreciated.
John
John
The Calibration Code on your truck is on a yellow decal on the core support, but it won't help much if you swapped engines. You need the computer from the Mustang. Computers are matched to Calibration Codes and are programed with specific info. Change the engine without swapping the emissions parts or the computer can create a nightmare...trying to get the vehicle to run correctly.
Lead Driver
Joined: Sep 2006
Posts: 7,907
Likes: 143
What you may fail to realize is that truck application programming is different from a car essentially because of weight first and options second.
For example; does your truck have PATS, does it have ETAC, power windows, what gem programming is needed, 4x4, gear ratio, tire size etc.
The PCM programming is very specific or some things may not work.
It would have been much simpler if the truck was a v8 to begin with, then programming would not be an issue.
Another thing about a car application is the ignition timing is more aggressive as opposed to a truck that would get to much timing for the weight and any loading.
Good luck.
For example; does your truck have PATS, does it have ETAC, power windows, what gem programming is needed, 4x4, gear ratio, tire size etc.
The PCM programming is very specific or some things may not work.
It would have been much simpler if the truck was a v8 to begin with, then programming would not be an issue.
Another thing about a car application is the ignition timing is more aggressive as opposed to a truck that would get to much timing for the weight and any loading.
Good luck.
Thread Starter
|
New User
Joined: Jul 2007
Posts: 6
Likes: 0
I swapped all the emissions from the 4.2 over and essentially the only thing I am using is a mustang engine block. I have a computer for a 98 mustang that will not let the truck fire. I also have one for a 97 that allows the truck to start and then die. I know it is in the computer system, but not sure what to use to fix it. The wiring for a mustang and truck of that year are the same except the truck requires a knock sensor which I do not have.
Posting Guru
Joined: May 2006
Posts: 2,486
Likes: 0
From: Iowa
Your best bet is to find sombody with a chassie dyno and have them custom tune it with a flip chip probably... thats probably where i will end up if the dyno guy cant put a stock 5.4l tune on my 4.6l... just wheel her up on the dyno and let her eat...wooot
Thread Starter
|
New User
Joined: Jul 2007
Posts: 6
Likes: 0
Trending Topics
New User
Joined: Oct 2007
Posts: 21
Likes: 0
ecu help
hey i rebuild ford ecu's at work, i might be able to get your one depending on year pats wont be an issue as long as it's not "e" type. i'd need your vin and all vehicle info and what you want the ecu to do. the calibrations ford doesn't say what they do, like when a new one comes out so i couldn't even tell you that.
your 4.2 ecu won't souport a 4.6 just because the number of drivers you could go down like from 8 to 6 with a calibration if it's even possible but ford won't put extra drivers, more money.
lemme know 100.00 shipped
your 4.2 ecu won't souport a 4.6 just because the number of drivers you could go down like from 8 to 6 with a calibration if it's even possible but ford won't put extra drivers, more money.
lemme know 100.00 shipped
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Posting Guru
Joined: May 2006
Posts: 2,486
Likes: 0
From: Iowa
well i need a 4.6l ecu with a 5.4l stock tune on it... can you do that? i know its possible... but the big problem is that my 5.4l is running off the 4.6l Coil pack ignition meaning the bunch of 5.4l ecu's i have are usless do to plug configuration..
let me know
let me know
New User
Joined: Oct 2007
Posts: 21
Likes: 0
yes i can
alright burnstoughford,
you need a 4.6 mustang ecu with a f150 5.4 cabilration?
i can get the same year 4.6 ecu as the f150. there's a lot of 5.4 calibration files for the f150 tho. if u want i will find out how many, there might be like 6 different calibration files for that f150 with the 5.4, and each has about 5 progressivly newer with updates from ford.
i need the year of the f150. vin ect. the more info the better. i'll let you know the pats type it is a,b,c or d. if i get your vin i can program the ecu and you might not have to do a pats relearn procedure, which is.
key on, ignition on for 5 sec.
then ignition off for 5 sec.
ignition on for 5 sec.
keey the battery on just cycle the ignition 5 times for 5 seconds and it should learn pats with the ecu.
you need a 4.6 mustang ecu with a f150 5.4 cabilration?
i can get the same year 4.6 ecu as the f150. there's a lot of 5.4 calibration files for the f150 tho. if u want i will find out how many, there might be like 6 different calibration files for that f150 with the 5.4, and each has about 5 progressivly newer with updates from ford.
i need the year of the f150. vin ect. the more info the better. i'll let you know the pats type it is a,b,c or d. if i get your vin i can program the ecu and you might not have to do a pats relearn procedure, which is.
key on, ignition on for 5 sec.
then ignition off for 5 sec.
ignition on for 5 sec.
keey the battery on just cycle the ignition 5 times for 5 seconds and it should learn pats with the ecu.
New User
Joined: Oct 2007
Posts: 21
Likes: 0
ecu's
alright well whats your problem then? the truck doesn't work when you use a 5.4l ecu? what 5.4l computer is it a 02 model or 99 model. im sure the 4.6 and 5.4 computer boards are the same (including harness plug wiring but im gonna make sure), as long as it's the same year just the calibration should be different.
i'll check the two wiring diagrams for the 4.6 and 5.4 99 f150's and there transmissions.
i know i can put something together if it is possible.
if all u need is the tune or calibration for the 5.4 on your old computer. get me the numbers on the pluf of the ecu, like,
xu3f-12a650-aub it will be similar, i'll get the same computer if available update it with the 5.4l send it to you and you let me know if it works.
i'll check the two wiring diagrams for the 4.6 and 5.4 99 f150's and there transmissions.
i know i can put something together if it is possible.
if all u need is the tune or calibration for the 5.4 on your old computer. get me the numbers on the pluf of the ecu, like,
xu3f-12a650-aub it will be similar, i'll get the same computer if available update it with the 5.4l send it to you and you let me know if it works.
Posting Guru
Joined: May 2006
Posts: 2,486
Likes: 0
From: Iowa
the 5.4l tuning is way different and i cant plug a 5.4l ECU into my computer harness because my truck is a coil pack ignition and all 5.4l's are a COP ignition...so the wires comming out of the ecu and the pins are all different.
