What is a throttle controller?
Your car’s electronic throttle control (ETC) is an automotive technology that connects your gas pedal to your engine and controls your engine’s airflow. The throttle controller is an innovation in newer cars—the technology 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 proportionate electric signal to your engine’s electronic control unit (ECU).
Electric throttle controls have many benefits over the old mechanical cables, including:
When should I replace the throttle controller on my car?
The most common symptoms of a bad throttle controller include:
Engine misfiring, hesitating, or stalling
Difficulty changing gears
Uncontrolled speed surges while driving
How often should a throttle controller be replaced?
Throttle controllers are meant to live and die with your vehicle, so they don’t fall under your typical car maintenance schedule. Still, you should be aware of the warning signs that your throttle controller might be failing and take your vehicle to a mechanic if you think you need a throttle controller replacement.
Can I replace my throttle controller myself?
You can replace a throttle controller at home if you’re confident in your DIY auto repair skills, but some cars might require a manual re-learn procedure to connect the new throttle controller. In most cases, it’s best to let a professional replace your throttle controller.