I have the opportunity to buy an original ECU for my engine but would need to make the loom myself.
Does anyone know where i can find out what pins on the ecu would need to be connected to what?

The engine is a 3.6 from an early (pre 1986 i think) XJS

Try here

Do not forget you will need the power resistor pack, I may have one hanging around, will check later if you U2 me.

Regards Mark

[Edited on 26/7/09 by mark chandler]

Thanks Mark.
Il have a proper look later but im not sure if any those diagrams are for the earlier ECU or if they are for the later ones (with the air flow metre).

These work on suction (MAP), 6 cylinder form as the 8CU for the 3.6 XJ-S from 1983-87) so no MAF meter as on the later ones.

Regards Mark

I have a set of XJ-S manuals in PDF if you need them (used to have a 1989 3.6 XJ-S)...