Jason
All I know for sure on the bottom edge of the PCM (trying to remember) a bar code and ID code. I've heard the term tear tag, but anyhow for example mine is KCA3. In order for the PCM to be a perfect match, these codes would have to match. IF you knew that the spare you had came from the same type of transmission MTX or ATX you probablely might get away with it. But if you only knew of all the running changes that are made in the same year it would make sense. Well sort of!!!!
Post over in the Mods or Durectec performance sections and see if you might run into someone more familiar. Give them the code that's on each PCM.
Couple of years ago I remember a big discussion about this.
Also the tear tag code was also attached to the passenger side door jam at the factory (hinge side "A" pillar), but since it was paper and not coated most came off.
Tinkering with cars can be a real pain nowdays. All this computer controlled stuff and all the revisions, calibratons changes, etc
Good Luck
Paul
Almost forgot since you said you don't have a spare key the dealer or a locksmith could re-acquait your Key with the PCM. It may just be that simple.
A friend of mine had something simple like that.
Last edited by F111D F; 01/10/03 02:45 AM.
