What is a throttle controller?

The throttle controller is an electronic device that connects your gas pedal to your engine. The throttle controller is an innovation in newer cars and is often known as drive-by-wire.
When you step on the gas pedal, you activate the throttle controller, which senses the amount of pressure on the pedal and sends a proportional electric signal to your engine’s electronic control unit.
Electric throttle controls have many benefits over the old mechanical cables, including:
  • Lower maintenance costs
  • Improved responsiveness
  • Improved fuel economy

When do I need to replace my throttle controller?

Several symptoms could indicate that it’s time to replace your throttle controller:
  • The engine is hesitating or misfiring
  • You have difficulty changing gears
  • The car is stalling
  • You experience uncontrolled speed surges while driving
  • Fuel economy has decreased
Not sure if your issue is with the throttle controller? Take your car to the mechanic! They’ll be able to diagnose the issue.
Remember: it is not safe to drive a vehicle with a faulty throttle controller. If your vehicle begins to behave erratically, safely exit the road as soon as possible and refrain from driving unless it’s absolutely necessary.

How to replace a throttle controller

Because it’s an electric rather than a mechanical component, the throttle cable is usually very simple to replace. The mechanic will:
  • Remove the battery
  • Take the defective throttle controller off the battery
  • Install a new throttle controller
  • Reconnect the battery
  • Turn on the car to test the throttle system

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