In order for engines to obtain greater efficiency, both the air and fuel must be precisely regulated. The fuel pump and injectors deliver an adequate supply of fuel, and the throttle body is what allows metered air to enter the intake. The vehicle’s computer constantly monitors with the Mass Air Flow Sensor (MAF), Manifold Absolute Pressure Sensor (MAP), and Oxygen Sensors (O2) to obtain an ideal air/fuel mixture for the engine.
The Powertrain Control Module (PCM) compares the amount of ambient air entering the MAF sensor and the intake manifold. In the event that it finds that these values exceed the allowable limit for the variation between them, the P2282 OBDII diagnostic code is stored.