The analysis from your MAF sensor is used to achieve a good fuel ratio by preventing too much air from getting into the engine when there is little fuel. In a perfect world, all gasoline engines would run the ideal air-fuel mixture of 14.7 parts air to 1 part fuel. This target mixture, which is referred to as the stoichiometric air-fuel ratio, is a compromise between optimum fuel economy and optimum power output. Their job is to monitor, make adjustments, and optimize performance.
#Mass airflow cleaner manual
This is the brain of your car, receiving and sending information about airflow and gas composition through its computers and processing fuel consumption rates for each driving mode or engine setting accordingly.īy adjusting air-fuel ratios (AFRs), the ECU coordinates all aspects - from accelerating to heating!Īn engine’s AFR is a balance between the amount that’s burned and what isn’t, determining how much oxygen will reach your engine’s combustion chambers and helping to create power for vehicles with manual transmissions or Automated manuals.ĮCUs optimize these ratios for different types of vehicles. Most modern cars come equipped with an electronic control unit (ECU). Immediately after analyzing the air flowing into the engine, the MAF sensor feeds that data analysis to the engine computer for efficient fuel consumption. This is all determined during the combustion process. You’ll see it installed between the intake manifold of the engine and the air filter it is often considered the most critical component of an electronic fuel injection system!īy measuring both air density and temperature, your vehicle’s electronic control unit can then calculate how much fuel should be added to achieve the correct air-fuel ratio. The mass air flow sensor is a device that measures the air mass flowing into the engine intake. Over time, dust and oil contamination can reduce MAF sensor performance, adversely affecting driveability and increasing exhaust emissions.
However, keeping this little device clean is important, as MAF sensors are critical to the proper operation of your vehicle’s fuel injection system. Like most people, you probably don’t think about your vehicle’s mass air flow sensor very often.
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