It is incomplete combustion inside the combustion chamber, in other words.Īs we told you before, a bad throttle body can mess with the air-fuel mixture, and it can also cause your engine to misfire. Misfires occur either when the air-fuel mixture is very wrong or when it comes to a weak spark from the spark plug. If you notice that your car has a very uneven acceleration – sometimes it is fast and sometimes slow, you might have a bad throttle body. This means that a faulty throttle body can mess the air-fuel mixture up, which will cause problems when accelerating. The throttle body is also regulating the air-fuel mixture that is entering the engine. The car engine is most sensitive at idle, where you will notice symptoms of a dirty or bad throttle body first. If you notice your car’s engine idle is jumping up and down and make strange sounds, it may be due to a dirty or damaged throttle body. The check engine light also comes on due to several other reasons, which is why we recommend to visit an auto specialist and have the car scanned for any trouble codes when it pops up on your dashboard. As soon as the car’s onboard computer detects a problem with the throttle body signal, it will cause the check engine light to illuminate. The throttle body has some angle sensors and other sensors installed inside of it. If you are still interested in more in-depth knowledge about each symptom, here is a more detailed list of the most common symptoms of a bad throttle body: Check Engine Light
![vue injector and throttle body plug vue injector and throttle body plug](http://stropso.com/wp-content/uploads/2018/05/15069-2.jpg)
The main symptoms of a bad or failing throttle body include: The most common symptom of a bad throttle body is engine performance issues together with a check engine light on your car’s dashboard. How do you reset a throttle body? 8 Bad Throttle Body Symptoms