I recently had my check engine light, and traction control light on. The cruise control was blinking. I brought it to a autoshop and they used a scanner and it said emissions leak. I have a 2013 wrx. We reset the codes and all the lights disappeared. Turns out it was the gas cap that lead to all of it. Once he reset it. I feel that my throttle is not as responsive? did the scanner change something with the throttle? Or am I just getting used to the car?