H22 from 5th gen prelude to 3rd gen swap problem

[vjekoaccordRT]

Hi to you all.
Need help.
Swap has bean made from 1998 prelude to 1989 prelude, engine H22 vtec.
In car is engine, ecu obd2, ecu wires to engine and key ignition lock.
Now, she starts, work for 2sec and then goes off. Always the same.
Does anyone know what else do i need for this to work? i mean from 5th gen what else i must swap to 3rd?? Dash wiring, cluster gauge or something else??
Thanks for all your help guys

[vjekoaccordRT]

For all others, problem was Immobilizer for security code, under stering wheel under dash.
Car is running great.
If someone wants i can upload a swap informations. OBD0 to OBD2 and everything works perfect.

[mayberry]

I'm in for the swap info. Just so we can reference it since a lot of people don't understand much about obd2 cars.

[vjekoaccordRT]

I'm in for the swap info. Just so we can reference it since a lot of people don't understand much about obd2 cars.

Yes, ok, in day or two i will put everything in this thread.
Yust to help others to understand that OBD2 is very simple.