Hi, im les i just got my car out the shop for body work and paint. I noticed my radio was saying code. So i pretty sure they had to unhook my battery or something. Here's the real problem i drove the car to work the next day andi drove fine going. When i got in the car to go home i noticed a lost of accelaation and the car act as if it wanted to cut off. Then about 5min later my check engine light came on reading (engine electronics). I also noticed that morning before i entering the car that morning to go to work my tilt awheel didn't have any power. Before putting my car in the shop i didn't have any check engine lights on and no problem with the car whatsoever. What can be the problem , i need help ?