Hi chaps..
I have fitted a cosworth brake set up to my kit car , the calipers are 2.0lt sierra. I have not fitted the cosworth loom to it and have not fitted the abs sensors . the pump is switched on by the brake light switch through the via a relay, after reading a few threads about problems with the pedal going hard and the pump over pressurising the brakes. I think this could be happening to mine so. Does any one have a wiring diagram of the brake system or one of ware the pressure sensor is and how it is wired so I can wire it up and see if this stops the problem.
Paul.