Isuzu G-series Twin Cam

Please!
Help me!
I restore machine Isuzu Aska Irmsher 1986 JJ120-9181035. Engine 4ZC1-T 8 valve. Injection system Jecs. I can not find on it
the repair manual with the electric scheme anywhere a "wiring diagram" or "deal drawing" or "block diagram".
On Piazza 1986 is analog tnis system.
My name is Alexey.
I live in Russia.

I have engine electrical documents for the 1986 Isuzu Piazza. I will send them to you.

Thank you !!!

My english is not best.
I am repair this car.
I don't have any wiring on engine.
Engine tuning is Unisa JECS, and car tuning is Irmsher.
Car's name is Isuzu Aska Irmsher.
Car is right hand.
Year is 1985 or 1986.
Engine 2,4 l on basis 4ZC1-T-5ZE with NOS.
Wiring on NOS system and on body is all right.
I don't know,what me do it.
HELP!!!!!