hi, zetec engine is fitted in car, trying to sort esc wirring out 4 temparary running, have got most of it sorted thanks to wasas picture in earlier posts, problem is i have a spare plug with 4 wires in it, black, green, brown, and brown/green, any ides what these are 4, bought haynes manual 4 escort but no wiring diagram in it for esc ignition, all help greatly recieved, thanks

That sounds like the plug that hooks up to the car.

black = switched 12v
Brown = earth
Green = Tacho

Brown/ green = oil low presure switch.


hope that helps

[Edited on 30/3/10 by big_wasa]

cheers wasa, will try that over the weekend.