Out of curiosity, how do you verify the correct PCM for your truck? What are the differences. I think the one I first pulled from my truck was F2TF-MA

 

The "batch code" & it's original engineering number are dependent on the "calibration code" as listed on your door pillar.



Sometimes subford will have the number if you post your calibration #.

On a very few trucks I've seen a sticker (about 1 inch square) with the batch code on it in the vicinity of the drivers side footwell.

Also your "engineering number" would be something like F2TF-12A650-MA, the 12A650 being the basic description for "computer" & the MA something like a revision code.

 

The "MA" EECM is correct for a 1992 5.8L, Calibration Code; 1-64H-R10

 

Great info Vinny!

 

Last part looks like 6HJ

 

This is the page for your Calibration;

 

Can you find your Build/Manufacture/MFR Date on one of your stickers ?

 

October 91

 

Found info on my last pcm, it is -MB good deal

 

Yeah, it's not uncommon to have parts from the previous model year early in the next model year, if there was no change in the configuration/calibration into the new model year.

 

So what information can be gleamed about my truck from that? I understand the viin breakdown and codes at the bottom of the other sticker.