ok so i have no idea whats up with this. after driving on a freeway for a good half hour going over 70mph my ABS INOP light will come on then stay on. now if im just driving around the city, even for hours on end, the light does'nt come on??!! does anybody have any idea whats going on? when i drove home from college a few weekends ago it was on from when i started the car untill 30 mins on the highway then it went off but then 30 mins later it came back on but that only happened once. so help please and thanks in advance.

 

I posted a thread about this the other day. Basically it "could" be that a spark plug wire is too close to an ABS sensor.