On mine & all others behind the battery there should be 1 X CPU and another behind it with long square terminal ends on them which are about battery cable thickness. Also there are TWO relays 2' X 1 1/2' (about) which control:
1- the ECU
2 - the fuel pump relay

what I am not clear on is your car running , because without any of the above I think you need to perhaps contact me back

let us know how u go

regards Graham