What are the signs of a failing throttle position sensor?

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Is your car acting up? Stalling, surging, or just not accelerating like it used to? It could be a problem with your throttle position sensor (TPS). In this post, we’ll dive into the symptoms of a bad TPS and what you can do about it.

What is a throttle position sensor?

The TPS is a small but mighty component of your car’s fuel management system. Its job is to monitor the position of the throttle and send signals to the engine control module (ECM). This helps ensure that your engine gets the right amount of air and fuel for optimal performance.

Symptoms of a failing TPS

When your TPS starts to go bad, you might notice some of these warning signs:

  • Check engine light: One of the first indications of a problem
  • Poor acceleration: Your car may feel sluggish or lack power when you step on the gas
  • Rough idle or stalling: The engine may stumble, stall, or run roughly, especially at idle
  • Surging: The car may suddenly accelerate on its own, even when you’re not pressing the gas pedal
  • Reduced fuel economy: A faulty TPS can cause your engine to run less efficiently, leading to poor fuel mileage

If you’re experiencing any of these issues, it’s time to have your TPS checked out by a professional.

Repairing a bad TPS

In some cases, a bad TPS can be repaired by cleaning the connections or reprogramming the sensor. However, if the sensor itself is damaged, it will need to be replaced.

Replacing a TPS involves locating the sensor (usually on the throttle body), disconnecting the electrical connector and mounting screws, and installing the new sensor. It’s a job best left to a skilled mechanic who can ensure proper installation and calibration.

Cost of TPS repairs in New Zealand

The cost of replacing a TPS in New Zealand can vary depending on your vehicle’s make and model. On average, you can expect to pay between $400 and $650+ for parts and labour.

Why choose My Auto Shop?

At My Auto Shop, we make car repairs convenient and stress-free. Our mobile mechanics come to you, whether you’re at home or at work. We offer upfront, transparent pricing and quotes for hundreds of services, so you know exactly what to expect.

All of our mechanics are MTA-approved, and our work is covered by a 10,000km warranty. Plus, with hundreds of 5-star reviews from happy customers, you can trust that your car is in good hands.

If you suspect your TPS is failing, don’t wait until it becomes a bigger problem. Book an appointment with My Auto Shop today and let us get your car running smoothly again.