DTC P1514: Airflow Rate Excessive: Description
WARNING: This page is about a different car, the 2002 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
The Powertrain Control Module (PCM) uses the following readings in order to calculate the predicted Mass Airflow (MAF) rate:
- The Throttle Position (TP).
- The Barometric (BARO) pressure.
- The Intake Air Temperature (IAT).
- The engine RPM.
The PCM compares the predicted MAF value to the actual MAF value, and to the speed density calculation in order to verify the proper throttle operation.