EEC part number
Thread Starter
Junior Member
Joined: Jul 2025
Posts: 7
Likes: 1
EEC part number
I am stumped. I have the calibration code in the door frame and the computer but they don’t match. Is this normal.
Door jam7-51H-R00
E8AE-6E061-AНB
Computer
E8TF-12A650-CL2A
Do I have the correct computer?
Truck is a 89 4.9 manual 4wd
Door jam7-51H-R00
E8AE-6E061-AНB
Computer
E8TF-12A650-CL2A
Do I have the correct computer?
Truck is a 89 4.9 manual 4wd
Senior Member
Joined: Oct 2016
Posts: 3,695
Likes: 766
From: Parts Unknown
Use the information on the ECM for replacement options. Your present ECM must have worked with your engine in the past so I doubt it's the wrong one.
Senior Member
Joined: Apr 2023
Posts: 4,268
Likes: 1,382
From: Near Salt Lake City
The calibration number on the door jamb is usually followed by a 2, 3 or 4 digit code
My code was JAG1 for my van and that code must / will be on the processor too
We used to consider that code the "tear tag" and was similar to the E prom coding for the calibration
I'll post a picture of mine later if I can find my original processor
I was lucky and found an exact replacement reman from Cardone on Ebay
The dealer should be able to tell you what computer your truck needs from just the calibration number
My code was JAG1 for my van and that code must / will be on the processor too
We used to consider that code the "tear tag" and was similar to the E prom coding for the calibration
I'll post a picture of mine later if I can find my original processor
I was lucky and found an exact replacement reman from Cardone on Ebay
The dealer should be able to tell you what computer your truck needs from just the calibration number