Also, don't attempt to physically clean the sensor with anything. If cleaning the MAF sensor, use an electronics spray cleaner to do it with. As stated in the list at the beginning of this article, other symptoms may include but are not limited to: higher tailpipe emissions and diagnostic codes that may illuminate the check engine light. The most common symptom of this contamination is a hesitation or a time-lag in engine response that is felt after the accelerator pedal is depressed. This contamination will cause the sensor to produce a lower reading to the fuel injection computer. Cleaning this type of sensor is easy since the hot-wires are clearly visible to the eye (with the sensor removed). Why? Because this MAF sensor is a hot-wire type that easily becomes contaminated with dirt and stuff from the air filter not performing its job. The most important thing to do first, is to make sure your MAF sensor isn't contaminated with dirt and/or oil, since the tests in this article assume the MAF sensor isn't contaminated. A tremendous lack of power upon acceleration.Īs stated before, the mass air flow test is a very easy and simple test but there are a couple of things that have to be done first.The most common symptoms of a bad MAF sensor are: Puedes encontrar este tutorial en Español aquí: Cómo Se Prueba Un Sensor MAF -Soluciones Automotrices (en: ). Although I'm not going to be going into details about each of the different type types of MAF sensors, I will show you where you can find tutorials to test the MAF sensor for Buick, Chevrolet, Ford, GMC, Isuzu, Mazda, Mercury, Nissan, Oldsmobile, and Volkswagen (on last page of article). In this article, I am going to briefly explain the three basic multimeter tests that are done to find out if it's bad or not. Yes, a digital multimeter can be used in testing the mass air flow (MAF) sensor. A MAF sensor can be tested without a scan tool.
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