We just replaced the throttle body on an 02 honda civic and now it shifts into neutral before advancing to the next gear. It's an automatic. Before we replaced the throttle body, the check engine like would come on, and it would race and not shift. If we put it in neutral and shut it off while coasting and start it up, it would correct the problem so we replaced the throttle body as the code indicated to do but now it doesn't shift properly. Can anyone help?