ABS light stays on

Hi, I just got my truck back up and going after almost a year from the transmission going out. Well once I took it for a drive I noticed that the ABS light was on before I left the driveway. The truck usually spins out if I barely hit the gas. It does not do that now. I checked if my brakes are hung up and like. The front left caliper had seized up, so I fixed that. The ABS light is still on and acts the same (not spinning out so easily as before any breakdown). Now I do not know if my brake line is the problem or the speed sensor or what. I know while I am driving between fifty five and seventy mph, my truck seems to sputter. I just want to torch the thing. That is how frustrated I am with this truck. It is one thing after another seems like.