Swapped rev1 n/a to a rev2 turbo engine with ecu

,but I am using the rev1 wiring loom.the engine will start

& runs with rev1 n/a ecu but when put rev2 turbo ecu on it it starts but will stop after about 30 seconds

( if touch throttle it just cuts out) my car is mr2 j reg

(1991) 2L 16v it also has immobiliser fitted

,the rev2 ecu has not got that programmed into it

.

.I hope someone can help with pointing me in right direction

& tell me what I have not done thanks