I gaurantee you the OBDI haarness will not work in conjuction with that of a OBDII engine...you will have to ghetto rig or modify the harness inorder for it to work.
Use the correct wire harness, the drop will be fast and easy and you will run into no or little problems with the engine. Modifying the wire to work will lead you into a road of frustrations and waste of time.
This is what you should do:
Get the OBDII ITR engine and hook everything up via OBDII wire...buy a OBDII to OBDI ECU convrsion harness and hook up the OBDI ECU.
Heres the conversion harness you should buy; http://www.lightningmotorsports.com/skunk2_electronic.htm
Good luck
Use the correct wire harness, the drop will be fast and easy and you will run into no or little problems with the engine. Modifying the wire to work will lead you into a road of frustrations and waste of time.
This is what you should do:
Get the OBDII ITR engine and hook everything up via OBDII wire...buy a OBDII to OBDI ECU convrsion harness and hook up the OBDI ECU.

Heres the conversion harness you should buy; http://www.lightningmotorsports.com/skunk2_electronic.htm
Good luck