VR-C5PD-01-04 C5 Vararam Power Duct
A mass air flow sensor is most common in newer vehicles, this sensor is used to help maximize efficiency and reduce emissions. One of the benefits of the mass air flow sensor is that it can vary responding to changes in air intake flow. There are no moving parts in a mass air flow sensor. Most vehicles mass air flow sensor locations are in the air intake for the engine, this allows easy replacement. It is recommended that the sensor be replaced approximately every 60,000 miles. More flow means more power. These mass airflow sensors flow 41 percent more airflow then stock. The Powr-Flo sensors are designed to improve horsepower and increase gas mileage. They are compatible with factory electronics and stock vehicles, as well as modified vehicles including, but not limited to: Performance tuning. Most of us remember the "good old days" when an engine's air/fuel (a/f) ratio was controlled by a mechanically operated carburetor. Due to the inherent design limitations of mechanical systems, however, carburetors don't respond efficiently to changes in barometric pressure, temperature and humidity. In the quest for improved fuel economy and reduced exhaust emissions, import manufacturers were among the first to introduce electronic fuel injection systems that could rapidly compensate for changes in atmospheric conditions. The evolution of electronic fuel injection systems includes two basic methods of measuring the air flowing into an engine: indirect (speed density) and direct (air flow sensor) metering. Currently, electronic air flow sensors are the most dominant in the market. Electronic air flow sensors may operate alone or in conjunction with a conventional manifold absolute pressure (MAP) sensor. Three basic types of electronic air flow sensors have been introduced to the import market during the past two decades - Karman vortex, hot-wire and hot-film. Very briefly, the Karman vortex air flow sensor is perhaps the most unusual because it is designed to generate vortices in the intake air flow. Obviously, increased air flow makes these vortices more turbulent. The relative turbulence of these vortices is measured by sonic waves generated by the sensor itself. These measurements are then sent to the PCM as a frequency signal.
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