hi all,
new to this site and cosworths so please bare with me.
i have a mk1 escort and just been given a 2wd cosworth engine.
i have the engine bay harness and ecu. the harness has 2 relays both yellow.
1 black connector and i yellow. i think the black is for the fuel pump.
there is also a purple connector with no relay, is this used.

ok. my problem is i have a self contained fuel system in the car, seperate relays and fused.

can i do away with the relay on the loom or do i need to use it because of the ecu. if so HOW.

any info would be great.

thanks