Trouble Accelerating? It May Be the Throttle Position Sensor
Trouble Accelerating? It May Be the Throttle Position Sensor
When you step on the accelerator pedal, you expect your vehicle to speed up—not slow down. If it doesn’t, you may have a problem with the throttle position sensor (TPS).
What is the Throttle Position Sensor?
The TPS is a sensor that helps determine the right mixture of fuel and air in the engine. When the engine needs more air to accelerate, the throttle opens; it closes when you need less. The sensor is responsible for sensing the position of the throttle. It sends that information, along with airflow measurements, to your vehicle’s onboard computer.
The computer takes a variety of factors, such as the airflow and how fast the engine is turning over to determine how much fuel the engine needs. When everything is working properly, you’ll have good fuel economy and the acceleration you’d expect. If the TPS fails, you might notice the following symptoms:
- Poor acceleration
- Reduced engine power
- Your vehicle accelerates on its own
- The check engine light is on
- Stalling
- A rough or slow idle
- Your vehicle won’t shift up
If you notice any of the above signs, it’s best to schedule an appointment soon. A faulty or failing TPS can be a serious safety issue.
In the case of total TPS failure, most vehicles have what’s known as a “limp home” or “limp-in” mode. This is a security feature that’s activated when your vehicle’s computer detects an issue that could damage the engine. The less important features of your car will be switched off, and you’ll have reduced engine power and speed, but it’s enough to get you home or to the repair shop.
Get Your TPS Repaired at EuroCar Service
Computers are an essential part of today’s vehicles, so it’s important to keep them—and the sensors that provide vital information—working properly. Our qualified technicians will diagnose and install the correct TPS replacement part. In some cases, it may also need to be reprogrammed, so it can work harmoniously with the other software in your vehicle.
Whether you’re having acceleration issues or just need some general maintenance, EuroCar Service is here to keep your vehicle safe and reliable. We see all European makes, including Audi, BMW, Mercedes, Land Rover, Mini-Cooper, Smart Car, Volvo, Saab, Jaguar, Volkswagen, and Fiat. Schedule an appointment today by calling (206) 527-8828 or request an appointment online.
