Calibration Code to to EEC Program Code
Logistics Pro
Joined: Aug 2014
Posts: 3,559
Likes: 852
It's the hardware code that needs to match. The picture above shows EFI-SD48B, which is for a 351w E4OD.
In the context of the EEC-IV itself, the calibration is the 4-digit code.
The picture above shows the calibration as LAY1.
Bottom line, any hardware with EFI-SD48B will work with any V8 engine.
I believe the manual EEC-IV will have hardware EFI-SD44B, missing hardware to run electronic trans.
You cannot swap SD44B with SD48B vice versa.
You can use SD48B with a tuner to run a manual trans.
You cannot use SD44B ever, to run an electronic trans, C6 would be OK.
Above is all Speed Density(SD) EFI-SDxxx
Mass Air Flow(MAF) will have SMD-xxx hardware codes.
In the context of the EEC-IV itself, the calibration is the 4-digit code.
The picture above shows the calibration as LAY1.
Bottom line, any hardware with EFI-SD48B will work with any V8 engine.
I believe the manual EEC-IV will have hardware EFI-SD44B, missing hardware to run electronic trans.
You cannot swap SD44B with SD48B vice versa.
You can use SD48B with a tuner to run a manual trans.
You cannot use SD44B ever, to run an electronic trans, C6 would be OK.
Above is all Speed Density(SD) EFI-SDxxx
Mass Air Flow(MAF) will have SMD-xxx hardware codes.
New User
Joined: Feb 2011
Posts: 5
Likes: 0
hello all, not meaning to hijack this thread, but have been looking for my own ECM number and can't find the link on line and would appreciate if you could help me out, Bill (subford). my information is as follows for my 1989 f150: Truck VIN number: 1FTEF15N6KNA79517
Calibration code (from door) 853HR00 second #: E8AE6E061-AHE i appreciate it so much, i also sent you an email to your gmail account and a friend request on this forum. thanks,
jim d.
Calibration code (from door) 853HR00 second #: E8AE6E061-AHE i appreciate it so much, i also sent you an email to your gmail account and a friend request on this forum. thanks,
jim d.
Logistics Pro
Joined: Aug 2014
Posts: 3,559
Likes: 852
If you have problems finding a spare, and your current EEC is working, get a Quarter Horse, download the calibration, then you can use any SD48B hardware(using quarter horse and your original calibration). It's can be cheaper as well.
Lead Driver
Joined: Jan 2019
Posts: 5,076
Likes: 865
From: N.W. Alabama
Thank you Subford, my sticker isnt on PCM, when I removed black cover to check it? It has pieces of it. I'm glad sandymane suggested getting spare. Makes me wonder if it is original or not now.
New User
Joined: Feb 2011
Posts: 5
Likes: 0
Hey Subford,
i sent an email to subford @gmail.com and got a reply from a TW Kalebaugh and information similar to what you have sent for the same calibration code 8-53H-R00, only difference being the processor his email gave was E8TZ 12A650 CPA and then added that the number on the unit could be either CP1A or CP2A, so i am confused, he had the same chart you posted here. is the difference in the numbers for automatic or manual transmissions???? mine has a manual, 4 speed on the floor, although i never use first as it is a granny, only 2nd, third and 4th. could you please clear this up for me.
thanks,
jim
i sent an email to subford @gmail.com and got a reply from a TW Kalebaugh and information similar to what you have sent for the same calibration code 8-53H-R00, only difference being the processor his email gave was E8TZ 12A650 CPA and then added that the number on the unit could be either CP1A or CP2A, so i am confused, he had the same chart you posted here. is the difference in the numbers for automatic or manual transmissions???? mine has a manual, 4 speed on the floor, although i never use first as it is a granny, only 2nd, third and 4th. could you please clear this up for me.
thanks,
jim
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Fleet Owner
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
For the calibration code 8-53H-R00.
All I can tell you is the Ford 1988 computer program listing list the part number as E8TZ 12A650-AJA and the Ford 1989 computer program listing list the part number as E8TZ 12A650-CPA with the number on the part as E8TF 12A650-CP1A or E8TF 12A650-CP2A.
I have no idea what transmission goes with each computer number.
I will check the 1988/89 microfiche numbers against with the Ford 1988/89 computer program listing.
It will take some time to set up the microfiche reader to check.
But I will guess that Ford changed the number for the same calibration code 8-53H-R00 from 1988 to 1989.
All I can tell you is the Ford 1988 computer program listing list the part number as E8TZ 12A650-AJA and the Ford 1989 computer program listing list the part number as E8TZ 12A650-CPA with the number on the part as E8TF 12A650-CP1A or E8TF 12A650-CP2A.
I have no idea what transmission goes with each computer number.
I will check the 1988/89 microfiche numbers against with the Ford 1988/89 computer program listing.
It will take some time to set up the microfiche reader to check.
But I will guess that Ford changed the number for the same calibration code 8-53H-R00 from 1988 to 1989.
Fleet Mechanic
Joined: Nov 2011
Posts: 1,823
Likes: 43
From: New York
Take note of my message above. Ideally you'll match the calibration code, but it's not required. Just make sure the engine, transmission, and air-metering method (SD or MAF) are the same and you will in all likelihood be fine. I speak from direct experience, not speculation.
Fleet Owner
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
The microfiche for calibration code 8-53H-R00 list E8TZ 12A650-CPA for the part number and E8TF 12A650-CP1A or E8TF 12A650-CP2A for the number on the part.
The microfiche does not list year only that 8-53H-R00 goes with part list #656 and part list #656 gives the above numbers for the part.
The microfiche does not list year only that 8-53H-R00 goes with part list #656 and part list #656 gives the above numbers for the part.
5th Gear
Joined: Jun 2022
Posts: 5
Likes: 0
OMG, My 1996 F150 5.0L, 5 speed auto/OD. has been dead in the water for months. So glad to have found this forum. I'm on my third attempt at replacing the ECM. Please do me: Calibration code 6-54E-R10; Engineering code: F6AE-6E061-SMM. Can somebody help me, PLEASE?
Lead Driver
Joined: Jan 2019
Posts: 5,076
Likes: 865
From: N.W. Alabama
OMG, My 1996 F150 5.0L, 5 speed auto/OD. (trans, will be one or the other not both, on these trucks) has been dead in the water for months. So glad to have found this forum. I'm on my third attempt at replacing the ECM. Please do me: Calibration code 6-54E-R10; Engineering code: F6AE-6E061-SMM. Can somebody help me, PLEASE?
Logistics Pro
Joined: Aug 2014
Posts: 3,559
Likes: 852
Any 5.0 OBD-II MAF AUTO ECU should work from 1996 F150 or F250, must be 104-pin.
Hardware ML1-441.