Throttle Motor Position Sensor/Potentiometer

A Throttle Motor Position Sensor measures the throttle valve angle and sends a proportionate voltage signal to the controller. The potentiometer joystick controller uses this information as a load signal and calculates the engine's ignition and fuel system requirements. It is also used to recognise operating conditions such as idle and full throttle that need to be controlled. Failures can be due to dirt, water and vibration damage as well as over-voltage damage due to wiring faults. A simple multimeter will highlight most faults.