What will a bad throttle position sensor do




What will a bad throttle position sensor do

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  • The throttle position sensor can fail in several ways, all of which result in poor fuel economy at best, and performance limitations that may create a safety hazard.

    Your TP Sensor may be more vital to your car than you think. But what is a throttle position sensor and how can a bad TPS harm your car? Here's what exactly.

    The function of the throttle position sensor is to supply information to the car's The TPS can give a bad input, prompting the engine to stall.

    What will a bad throttle position sensor do

    What will a bad throttle position sensor do

    When the car accelerates while driving, it usually means the butterfly valve inside the throttle has closed up and pops open suddenly when the driver presses on the accelerator. If you don't have the vehicle repair manual for your model, your local library may have a copy. Peter 40 years of experience. This is intended to at least allow a driver to get off a busy highway in a safer manner.

    What will a bad throttle position sensor do

    What will a bad throttle position sensor do

    What will a bad throttle position sensor do

    What will a bad throttle position sensor do

    What will a bad throttle position sensor do

    Bad Throttle Position Sensor Causes & Symptoms - How to Fix

    This page is for personal, non-commercial use. You may order presentation ready copies to distribute to your colleagues, customers, or clients, by visiting http: The throttle position sensor TPS is part of your vehicle's fuel management system, and helps ensure that the correct mixture of air and fuel is delivered to your engine. The TPS provides the most direct signal to the fuel injection system of what power demands are being made by the engine. The TPS signal is continually measured and combined many times per second with other data such as air temperature, engine RPM, air mass flow, and how quickly the throttle position changes.

    These data determine precisely how much fuel to inject into the engine at any given moment. If the throttle position sensor and its other sensor partners do their job correctly, your car accelerates , cruises, or coasts smoothly and efficiently, as you expect, while maintaining optimal fuel economy.

    What will a bad throttle position sensor do

    The throttle position sensor can fail in several ways, all of which result in poor fuel economy at best, and performance limitations that may create safety hazard for you and other motorists at worst. This sensor can fail gradually, or all at once. This is intended to at least allow a driver to get off a busy highway in a safer manner.

    Replacing the TPS will include clearing relevant fault codes, and may require software re-programming of the new TPS module to match other engine management software. This is all best left to a professional mechanic who can provide you with a diagnosis, and then install the correct replacement part. It may feel as though the car simply doesn't accelerate as it should. It may accelerate smoothly, but lack power. If these symptoms occur, there's a good chance you've got a problem with the TPS.

    What will a bad throttle position sensor do

    If you start to experience engine misfires , stalling , or rough idling when the car is stopped, it can also be a warning sign of a failing TPS.

    You don't want to wait to get this checked out! This is another failure mode of the TPS, which indicates that it is falsely limiting the power being requested with your accelerator pedal foot. You may find that your car will accelerate, but not beyond a speed of 20 - 30 MPH.

    This symptom often goes hand in hand with loss-of-power behavior. If you have any of the above symptoms, have your vehicle checked for trouble codes to verify the source of the problem. The throttle position sensor is key to getting the desired power and fuel efficiency from your vehicle in any driving situation.

    What will a bad throttle position sensor do

    As the symptoms listed above make clear, failure of this component has serious safety implications, and must be checked out immediately by a qualified mechanic. This article originally appeared on YourMechanic. Ads can be annoying. But ads are also how we keep the garage doors open and the lights on here at Autoblog - and keep our stories free for you and for everyone.

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    How to Stop Car Hesitation (Throttle Position Sensor)



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