You may need to adjust the sensor screws using a voltmeter to achieve an optimal reading. Swap out the old sensor with a new one, then reverse the earlier steps. Next, use a screwdriver to remove the sensor mounting screws, then lift the sensor. Luckily, this is a job you can handle on your own.Īfter locating the TPS, disconnect the negative battery terminal before you remove the sensor electrical connector. Once you diagnose the problem, the solution is straightforward: Replace the throttle position sensor. Specifically, your vehicle will consume more fuel as the engine works harder to compensate for a faulty TPS. Sometimes, before the TPS exhibits other signs of trouble, you’ll notice that your car’s fuel economy has taken a direct hit. Instead of outright failure, the TPS may cause the engine to stall or surge as the sensor attempts to send the right mixture of fuel and air. Indeed, the ECU may activate a “limp home” mode, which makes it possible to get the vehicle out of traffic and over to the side of the road. This doesn’t mean your vehicle won’t move forward, however. But not so when the TPS is bad or failing. Press the pedal to the metal and you should receive an instantaneous response. A faulty TPS can cause your car to shake like it has engine knock. A diagnostic tool will help you determine what the check engine light is signaling. Once a TPS goes rogue, the ECU displays a warning on the instrument panel. The engine control unit (ECU) collects TPS data to optimize vehicle performance.Ī faulty throttle position sensor doesn’t happen without warning. Manufacturers typically place the throttle position sensor on the throttle valve spindle to monitor its position. ![]() But, exactly what is a throttle position sensor, and how can you recognize when one might be faulty? TPS Trouble Replacing a defective TPS is critical for keeping your vehicle running smoothly. This sensor works in tandem with others sensors to optimize acceleration, cruising speed and fuel economy. What is a throttle position sensor, and why is it important for it to work correctly? The throttle position sensor (TPS) is an essential part of your vehicle’s fuel management system, tasked with ensuring that a precise blend of air and fuel is routed to your engine.
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