REPLACING THE THROTTLE BODY ASSEMBLY Under some circumstances, it might be necessary to remove the throttle body assembly. Sometimes it may be to thoroughly clean the inlet and throttle blade, but more often it will be to replace it. The procedure is pretty straightforward. Q: How to tell if you need a new throttle body? A: If you find that your car idles quicker than usual, that may mean that the throttle body is sticking open. If your check engine light comes on and you find that you can’t get the car to accelerate above a certain rpm, the ECU has put you in limp mode. This means that there is something wrong with the drive-by-wire system. The most dangerous indicator is if the throttle sticks while driving and you can’t get the car to stop accelerating. If that ever happens, put.
