1998 Ford Contour Transmission Swap

Yes, All options are the same with the only exception being paint color.
When trying to locate a used transmission for the swap all suppliers asked for the ID tag numbers and stated that they had to be an exact match to swap. Thus my question.
Since I looked at about thirty different transmissions including my donor car (a totalled rear ended car with good engine and trans) and all were identical externally, I assume the difference is internal electronics. Therefore my PCM would have been calibrated for the F83P-DA and the donors trans to its PCM. I just wanted to verify this before doing the swap as they are lengthy and labor intensive.
So if my theory is correct it is a correlation of trans to PCM and if so then swapping the pcm and allowing it to "read the new car" would be successful since both cars are identical down to the floormats. Lol.
Thanks for your time and help!

Bill Russell

Sorry for any confusion but still need the answer as to whether the pcm is calibrated to the transmission per car and id tag. If so then can someone swap the transmission into another car if they also swap the pcm with it?

Unfortunate for you that prices are high with your suppliers. I cant afford new parts so I buy used when it comes to high dollar items. A transmission at my local pick and pull is 63 dollars tax and all. That is what led to this interchange dilema. But all is well. Heres what I had to do for your and everyone elses knowledge.
First was the tranny swap. Then the PCM. But when I put it back together and went for the first drive (after allowing the engine to run for 5 minutes at idle then 3 minutes at 1200 RPM to allow the computer to read the components) the shifting was irratic to say the least. So back to the pick and pull I went to check the harness and sure enough although all the same color wires were ran to the connector on top the casing they were in different order clockwise. So instead of swapping harnesses I noted the position of each color and headed back here. Twenty minutes later I had cut, rewired, soldered, and heatshrank every wire to the connector. Took it for another drive and presto. Runs like a new one. Now I guess I will never know if it is just the wiring difference or the PCM and wiring difference but on the same token I got out of the junkyard at 102 dollars and that includes the entrance fee. Nevermind the 12 hours labor. Lol
Thanks for what input you gave me and I have to say that the service provided here is worth alot more than the donations you recieve. Maybe not for me but for the real novice out there this could be truly invaluable.
Since my knowledge is vast on many different makes and models I believe I will try to answer a few of someone elses questions while I'm on here. Who knows maybe I can do this in my spare time and make a few bucks myself.

Bill Russell