Then restart the vehicle and run the engine idle for roughly 10 seconds.Īfter that, turn off the engine and reconnect the cable with the sensor. Just detach the cable harness from the sensor while the car is turned off. When it completely dries up, put the Mass Air Flow sensor back on and reconnect the cable. Just spray it on the sensor thoroughly and several times if needed.Īfter all the debris and oil are washed away, wait for some minutes to dry the sensor. Don’t use any other solvents or cleaners as those may leave residue and damage the sensor, which you do not want. Next up, use a Mass Airflow sensor cleaner which you can buy from a hardware store or auto parts store. Disconnect the wired connection from the sensor which comes from the ECU. To clean up the Duramax Mass Air Flow sensor, you have to pop it open simply by removing two screws that keep it attached to the air intake. It’s very common that it will have dirt, debris, or oil on it, especially if the intake has an oil filter installed. If your Duramax Mass Air Flow Sensor is giving wrong readings about the airflow, it’s time to check upon it. Method To Fix a Duramax Mass Air Flow Sensor With the incorrect data, the fuel injectors will send fuel to the combustion cylinder inconsistently. This throws off the accuracy of the sensor and sends wrong information to the PCM. Although the air filter can remove the dirt, it slowly becomes dirty.Īlso, the oil from different engine parts or the turbocharger can create a layer on the mass airflow sensor. Indication of running lean can be sensed by:Īfter running for several thousand miles, a MAF sensor of the air intake can get dirty and oily. The explosion won’t be intense with an insufficient amount of fuel. Although it may improve your fuel efficiency for a short period, the combustion won’t be perfect. The opposite of running rich is running lean on fuel. Dirty exhaust with excessive black smoke.Indication of air-to-fuel ratio running rich may include: It can clog up the machine and use up the fuel rapidly. The issue can cause varieties of problems to the engine. This suggests that the concentration of fuel is too much in the mix than air. Here are a few issues that may arise due to a faulty MAF sensor in a car. If the mass airflow sensor goes bad, it will be giving wrong information to the vehicle’s computer system. To maintain a stable and efficient performance, the fuel-to-air ratio needs to be optimal. According to the data, the electronics of the fuel injectors send the essential volume of fuel to the engine’s combustion chamber.
Recall that this sensor provides the necessary data to the vehicle’s computer. Problems Due To MAF Sensor FailureĪ vehicle’s engine will face many problems if the MAF sensor keeps failing. But all of these operate in the same fashion. All engines have MAF sensors on the air filter box, although the placement or the procedure to open them up can vary.
The Duramax mass airflow sensor has a filament in it that can determine the volume of air flowing across the air intake. The MAF sensor can be located on the air intake of any Duramax Engine. Duramax MAF Sensorĭuramax Diesel engines are popular V8 engines that are found on trucks and heavy vehicles. So, the MAF sensor sends essential data to the ECU or Engine Control Unit regarding air volume so that the fuel injector sprays fuel into the cylinder following the data. This creates a mini-explosion inside the cylinder that moves the pistons of the engines. This mixture or slurry goes directly to the cylinder, and then it is ignited. It means that for each unit to fuel, 14.7 equivalent units of air are needed for perfect combustion. It can also determine the volume of fuel to be sent to maintain the ratio. MAF sensor can measure the volume airflow that goes into the engine’s cylinder and send this data to the vehicle’s computer system. Can a bad mass air flow sensor be the reason for misfires? Should the battery be disconnected before detaching the MAF sensor?
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