ECU/PCM confusion
FTE Leadership Emeritus
Joined: May 2014
Posts: 27,352
Likes: 5,946
From: Lake Hartwell, GA
We do not have an ECU in our trucks. We have a PCM and an IDM. The PCM is in the cab by the firewall and the IDM is above the fender liner on the driver side front.
The PCM is the brain for the truck and controls or monitors most goings on in the truck. The IDM is the controller for the injectors.
That is a very basic explanation and I hope it helps.
The PCM is the brain for the truck and controls or monitors most goings on in the truck. The IDM is the controller for the injectors.
That is a very basic explanation and I hope it helps.
Logistics Pro
Joined: May 2017
Posts: 4,667
Likes: 1,455
From: Muskogee, Ok
One on the firewall by the ebrake is the PCM, Powertrain Control Module, controls all things engine and transmission
The one on the drivers side inner fender is the IDM, Injector Driver Module, powers only the injectors, commanded by the PCM
Edit: Sous types faster
The one on the drivers side inner fender is the IDM, Injector Driver Module, powers only the injectors, commanded by the PCM
Edit: Sous types faster
Logistics Pro
Joined: May 2017
Posts: 4,667
Likes: 1,455
From: Muskogee, Ok
Nope. As already mentioned above, we do not have an ECU on our trucks. So if u need an ECU then it's for a different vehicle than we can help you with in this particular subform. IDM or a PCM we can help you with
FTE Leadership Emeritus
Joined: May 2014
Posts: 27,352
Likes: 5,946
From: Lake Hartwell, GA
If you are speaking of an IDM, then see below. If you are looking for an ECU, please post up some details about the vehicle you are asking about...
RAE has been a good replacement IDM - 7.3L Ford Powerstroke Injector Driver Module
Hopped up IDM from RAE - https://www.remanautoelectronics.com...3L-IDM-HP.aspx
DTC is a good source for a hopped up IDM too - https://www.dieseltechchatt.com/pages/about-d-t-c
Swamps, RiffRaff, etc... all have IDM's, just choose your poison...
EDIT: Wesley was the fast one that time...
RAE has been a good replacement IDM - 7.3L Ford Powerstroke Injector Driver Module
Hopped up IDM from RAE - https://www.remanautoelectronics.com...3L-IDM-HP.aspx
DTC is a good source for a hopped up IDM too - https://www.dieseltechchatt.com/pages/about-d-t-c
Swamps, RiffRaff, etc... all have IDM's, just choose your poison...
EDIT: Wesley was the fast one that time...
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From: Whittier, Ca
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Fleet Mechanic
Joined: Mar 2009
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From: Sacramento Delta, CA
rondogw if the '97 F250 4X2 extra cab in your signature and in your avatar picture is a diesel and is the vehicle you are asking about, post your question here:
https://www.ford-trucks.com/forums/forum170/
https://www.ford-trucks.com/forums/forum170/
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Postmaster
Joined: Nov 2015
Posts: 4,807
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From: Colorado Springs
rondogw if the '97 F250 4X2 extra cab in your signature and in your avatar picture is a diesel and is the vehicle you are asking about, post your question here:
https://www.ford-trucks.com/forums/forum170/
https://www.ford-trucks.com/forums/forum170/
@Sous We have a new Moderator here that needs practice moving threads.
. I’ll bet when he wakes up from his afternoon nap he’ll see this and move it for you. 
FTE Leadership Emeritus
Joined: May 2014
Posts: 27,352
Likes: 5,946
From: Lake Hartwell, GA
rondogw if the '97 F250 4X2 extra cab in your signature and in your avatar picture is a diesel and is the vehicle you are asking about, post your question here:
https://www.ford-trucks.com/forums/forum170/
https://www.ford-trucks.com/forums/forum170/
@Sous We have a new Moderator here that needs practice moving threads. . I’ll bet when he wakes up from his afternoon nap he’ll see this and move it for you.
. I’ll bet when he wakes up from his afternoon nap he’ll see this and move it for you. Truth be told I am on my tablet and cannot see his signature and the avatar is tiny.
@rondogw I can move this thread to the appropriate sub-forum if you like?
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From: Whittier, Ca
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