proportioning valve sensor?
have a odd problem, i've not come across before with my brakes. there's a sensor in the proportioning valve, if I connect the wire to it, my brake light comes on instantly. new calipers, new hoses, new rotors, new pads all around. flushed and changed brake fluid. I drive a 89 trans am GTA 5.7L with four wheel disc brakes. the car does not have the 1le option. There are no leaks, and the only physical trouble I can tell is at highway speeds if I brake hard the car wants to pull to the left. Any ideas?