What is a Throttle position sensor?
What are signs of a bad throttle position sensor?
Is it expensive to fix a throttle position sensor?
Is it worth the repair?
In this article, we will go over these questions and more.
A bad throttle position sensor can cause other issues on your car if left unattended. That's right! If the sensor is faulty, it will cause your car to shake heavily. Eventually, if this issue is left unattended it will put major stress on your motor and transmission mounts to the point where they will give out and will need replacement.
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A throttle position sensor is similar to the motor cortex in the human brain, it controls one of the most important components of the car that keeps your engine running like a throttle body. Picture a little module in the car that reads how far down you have pressed the gas pedal. It gathers that information and relates it to the mass airflow sensor and the engine's RPM to make sure that the correct amount of air/fuel ratio is going into your engine properly.
When a TPS goes bad, then the car's throttle body won't function properly. It could either stay shut or it won't close properly which is a severe issue. If it stays shut then your engine is not going receive air and it won't start. When the throttle gets stuck in an open position than your vehicle will receive too much air and cause it to have a high or fluctuating idle.
Acceleration issues: A bad TPS may cause all sorts of power issues. Your engine may start up but it will have little to no power and it causes it to shut off. On the other hand, it can also cause your car to have spontaneous accelerations even if you didn't step on the gas.
Unstable Engine Idle: Faulty position sensors can cause sporadic idle conditions due to fluctuating airflow. If you see your car misfiring, Idling rough, or stalling out while you drive then you definitely want to have a professional check out that sensor.
Unusual fuel consumption: The TPS works alongside other sensors to ensure that your ride is driving smoothly and efficiently. When these sensors start to go bad then other modules might start working differently to compensate for lack or abundance of airflow. In most cases when your sensor goes bad, you will see the vehicle consuming more fuel than usual
Warning lights: The check engine light is designed to warn you when any sensor goes bad. If the check engine light turned on in your car, then it's important to check it out before the issue gets worse.
Some issues are worth fixing while others aren’t. In the case of a bad TPS if your car is relatively new with low miles then it has a long road ahead of it and maybe it is worth your while. Now if your vehicle has existing damages, high mileage, and now mechanical issues then it's best to sell that AS IS to avoid throwing away your hard earned cash into that money pit.
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