Hot Wire MAF Sensor Benefits: The Hot Wire (MAF Sensor) is less sensitive to location and orientation and it senses faster changes in air flow rate.Ĥ. This helps improve gasoline efficiency as the ECU adjusts the required fuel injection accordingly.ģ. Fuel Efficiency: The Mass Air Flow (MAF) Sensor monitors air levels and sends this data to your car’s electronic control unit. Improved Engine Performance: The Mass Air Flow (MAF) Sensor allows for a correct air/fuel ratio within the engine’s ignition chamber, resulting in improved engine performance.Ģ. The Benefits of Having a Working MAF Sensorġ. This signal’s circuit is given a separate ground. The MAF sensor’s signal/cue circuit is placed in the MAF sensor, which calculates how much current flows to the sensor and converts that current to the voltage, and sends it to the car’s electronic control unit through the MAF signal/cue wire. The MAF signal/cue circuit is given a separate ground, which is sent to the ECU. And the second one is for the MAF signal circuit. This cord is earthed somewhere in the chassis. The cue/signal wire means the MAF sensor sends the Output Voltage to the ECU.Ī four-wire Mass-Airflow sensor has two separate grounds. The MAF cue/signal cord goes to the car’s electronic control unit.
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