anyone else have that hex code?

 

I realize this is an extremely old post but when I googled my hex file this was the only result. Can anyone tell me anything about it.

 

Its just the calibration name Ford uses for your stock file...

 

so is this the file that is copied and replaced when flashing a new program?
I wasn't aware they used hex file format

 

Its the factory file for your PCM...not sure how else to describe it.

Thanks

 

so does anyone make a parsing tool to abstract the hex file?
If so wouldn't it be possible to modify the hex file and create a MOT file to flash the EProm of the PCM with an emulator such as an Renesas E1?
Thus eliminating the need for a programmer?

 

LOL, are you asking me how to do what we do, for free?

Lot of work to map the hex file, edit it and get it to go back in, then you gotta figure out how to deal with the checksums, not so simple

 

I am not asking to do what you do, however this is the type of work i do on a daily basis with other products. I thought it would be fun to try to play with my truck. Ive just never had to reverse engineer the mapping of a hex file. Thought maybe there was common knowledge out there available already for the old trucks like mine.

 

I'd buy a spare PCM or two to play with on the bench before you start testing on your truck.

It does seem like a lot of work considering everything you are looking to do is already done and commercially available, but could be fun

 

your prob right. I'll check ebay for a cheep PCM to play with.
I dont really need to chance my PCM, just wanna see if i could, lol
I would like to disable rear O2 sensors though so i can cut out cats.