Electronic Throttle Unit

Electronic Throttle Unit

An electronic throttle unit controls how much air is sucked by the engine. The unit has a butterfly valve that opens and closes based on the signals it receives from the accelerator and some other sensors.

Signs of a bad electronic throttle unit

  • Check engine light turns on
  • Poor performance
  • Stalling 
  • Rough idling

Electronic throttle unit operation

  • Your electronic throttle unit relies on the throttle position sensor which can be located on your accelerator pedal or placed remotely and be cable operated.
  • The throttle unit also provides control of the idle and cruise control operation.
  • Most electronic throttle units will allow the vehicle to run slowly if a fault happens.