Connected Battery backwards...ouch!

Thanks for the response, I connected the electric pump directly to the battery and started the car, and it runs fine. Idle is a little high. For some reason the pump won't kick on when the key is starting the engine. Either the relay is bad, or the oil pressure switch is bad. Reason I think this, I put a test light on the side of the oil pressure switch when the key was in the on position and it lit up, when you turn the key, the other side of the switch does not light up. This means the current is not being passed through it. hence it could be friend. Strange this guy never put a fuse between the batter and the rest of the circuits. Plain stupid.