Hyundai Accent Crdi 2010 problem

Hi, I'm new here. My car stalls when turning right. I took it to get scanned and it showed an injector error (they told me that was impossible because it only stalled when turning right). I took it to the dealership and they repaired it. They said it was a wire coming from the fuse box and if the problem persisted, it could be the fuel pump or an injector. It ran for a month without any problems. Now the car stalls or starts jerking at low RPMs. If I let off the gas, it keeps jerking. Please, if anyone can help me, as I'm experiencing these two problems.