My buddy came over yesterday with his 94 f150 5.0 MT 4x4. We did some work on the front end went to pull codes and figured out the ECC was bad. Today we swapped with an ECC we where told would be compatible the engine started up and ran great but when we went to drive the truck the OD light flashed and was in limp mode. No prior transmission problems so I figure the problem is between the 2 ecc's can any one tell me if these 2 are incompatible.

Original
F4TF - AAA

Swapped
F4TF - BBA

 

It is a Automatic not MT sorry..

 

They are incompatible.
The F4TF - AAA (HOG0) is for a E4OD Transmission .
The F4TF - BBA (BUG0) is for a 4R70W Transmission.

 

Is there a refrance avalible for this?

 

Here is one but they do not list the BBA (BUG0) computer.
Fuel Injection Technical Library » EEC Program Codes

The F4TF - AAA (HOG0) is for a E4OD Transmission .
The F4TF - BBA (BUG0) is for a 4R70W Transmission.

/

 

What lead you to that conclusion?

 

Sub thanks!
Con.. Ecc was in fail safe mode. Solid light. The truck has been doing very weird stuff. finaly would not run at all. Runs great with new ecc just will not drive!

 

What other ecc can be used on a 1990 ford f250 5.0 e40d?

 

What vehicle ford truck or bronco can take out the ecc which would work on my 90 f250 4x4 5.0 e40d truck?

 

What other year of truck or bronco can I swap ecc to work with 90 f250 5.0 e40d?

 

Asking 3 times is not going to help you.

Is this a MAF (big sensor on the air box before the intake) or a speed-density truck?

 

No speed denisty