Code P2135, RPMs are now going up when idle and car shakes before turning on traction control?

I recently had my transmission replaced. About 1,500 miles later the check engine light came on and then traction control started to randomly come on and kill my engine power. I'd have to pull over and restart the car. Scanned for codes and got p2135 and c1130. Replaced the throttle body and c1130 went away, but p2135 remains. Rpms are now going up when idle and car shakes before turning on traction control. Even if I turn off traction control it still comes on and is becoming more frequent to the point where sometimes it turns on the moment, I start my car.