A bad MAF sensor can lead to illuminated check engine light, one of the warning. 12 Air Flow Meter/Mass Air Flow Sensor Code 21: right front speed sensor or. It is possible for the wires in the connector to break, causing the mass airflow sensor to not work. Symptoms of a Faulty Mass Air Flow (MAF) Sensor 1. What OBD Fault Code List 14 coolant sensor high resistance or shorted P0817. When doing this job, the mechanic may recommend changing the electrical connector that connects the mass airflow sensor to the car's computer system. If the vacuum hoses are leaking, it will give the same error code as mass airflow sensor failure. It is common for the mass airflow sensor to get dirty (if the air filter is dirty) and lose the ability to read the amount of air coming in the engine. If the sensor goes bad, the engine will not know the right amount of fuel to add, causing problems including poor gas mileage, lack of power and more. The computer in the car reads the amount of air coming into the engine from the mass airflow sensor and then calculates the correct amount of fuel needed for proper engine performance. can help diagnose a misfire: P0100-P0104: Mass air flow sensor related codes. It passes this information onto your 4Runner’s ECU. A MAF sensor measures the density of the air entering the intake manifold. For an engine to perform properly, it needs a specific amount of air-fuel mixture. an intermittent rough idle on his well-maintained 1998 Toyota 4Runner. A bad mass airflow sensor can leave your Toyota 4Runner’s engine running rough, or even inoperable. The mass airflow sensor measures the amount of air entering the engine.
All cars take air from the outside and pass it into the engine through the air filter. The mass airflow sensor is a round tunnel made of plastic with a sensor attached inside. What is the Mass Airflow Sensor all about? Service type Mass Airflow Sensor Replacement
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