My car has an extremely high idle while in park and neutral. When driving, it accelerates on it's own to about 35 mph. When I brake, it tries to lunge forward. This happened several times before after driving at high speeds down the highway but always went away. Now after driving on the highway this weekend, it is still acting like it's going 60 mph at all times! Please help. I'm thinking about replacing the TPS. I cleaned the throttle body and that did not help. Thanks so much!