Why Does Unplugging The Sensor Make The Car Run Better? If the symptoms are minor, the sensor can be cleaned with a dedicated MAF cleaner, but if unplugging the sensor makes the car run better, it should be replaced. Over time, the particles accumulate on the MAF sensor, causing it to produce inaccurate readings. However, the air filter does not filtrate 100% of the particles, especially if it’s old. As it is located after the air filter, the air flowing over it should be clean. The MAF sensor is a very accurate, but also a very delicate component. With no fuel wasted, the fuel economy is at its best, and it also reduces the negative effect on the environment. The optimal air-fuel mixture leads to higher power output and ensures all the fuel gets used up. For modern fuel injection systems, precision is everything, and knowing how much air is available in every millisecond allows the ECU to adjust the fuel injection frequently.
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