![]() If you’re concerned with the throttle body or are experiencing acceleration and idling issues, review these throttle body symptoms to determine whether your vehicle needs a new throttle position sensor and what you can do to repair, replace or reprogram your sensor.Īdvice, how-to guides, and car care information featured on and AutoZone Advice & How-To’s are presented as helpful resources for general maintenance and automotive repairs from a general perspective only and should be used at your own risk. Many different components, including the throttle body system, work together to provide the engine with smooth acceleration. If your vehicle is having engine issues, it can be difficult to find the culprit. A broken sensor needs to be replaced in order to restore full functionality to your vehicle. Once you’ve established the issue is with your sensor and that it isn’t a programming fault, check the wiring and connection points before purchasing a new one.įinally, sometimes your sensor is irreparably damaged. Just like any other electrical wiring, your throttle position sensor is susceptible to corrosion and faulty connections. If your sensor just needs repairs, it could be the result of faulty or loose wiring. This job is best done by a professional mechanic. Otherwise, you’ll need professional software to reprogram your sensor. Code errors can cause your throttle position sensor to work erratically or incorrectly. Resetting is sometimes all that is required to restore your sensor. Don’t attempt this if you’re uncomfortable working with electricity, as removing the wrong fuse or cable from your battery could be dangerous. The easiest way to reset your throttle position sensor is to unhook the negative cable from your battery for up to five minutes or to remove the fuse for your engine control module. This step can also be necessary when you install a new sensor. Reprogramming or resetting your sensor can sometimes solve these issues. Completely replacing your sensor may be the best way to avoid future issues, but some issues can be easily fixed by reprogramming or repairing your sensor. Once you’ve gone through the symptoms of a bad throttle position sensor, it’s time to find a solution. These two steps can also help you determine whether you need to repair, replace or reprogram your sensor. Check the engine control module for the trouble code that resulted in your illuminated check engine light to see if it is linked with your throttle position sensor. By using a multimeter, you can determine if the sensor has an electrical connection issue. ![]() The best way to determine if these issues are caused by your throttle position sensor is to go to the source. Stalling, surging, or hesitating while idling all can be caused by this unassuming sensor. Similarly, if your engine struggles to idle efficiently, it could also be a result of a damaged throttle position sensor. If you notice your fuel economy has dropped dramatically, it could be a result of an improper fuel and air mixture. Too much airflow or too little could cause poor acceleration performance, but it could also be linked with other engine issues. Difficulty and/or delay in gear shiftingĮach of these could be signs that your throttle position sensor isn’t working correctly.During your normal driving, consider inspecting your sensor if you experience any of these throttle position sensor symptoms: Next, any unusual changes in your acceleration could be linked to this sensor. This indicator is a vague symptom, as it could also point to a variety of issues, but you can expect to see it if there’s any issue with your throttle position sensor. The most common symptom is your check engine light. ![]() While some of these symptoms could also be signs of other engine issues, watch out for these symptoms of bad TPS, or throttle position sensor. There are many symptoms of a failed throttle position sensor.
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