DTC P1514: Actual MAF & Speed Density Is Greater Than Expected: Description
WARNING: This page is about a different car, the 2002 Pontiac Firebird and 2002 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.
The powertrain control module (PCM) uses the following information in order to calculate an expected mass airflow (MAF) rate:
- The Throttle Position (TP).
- The Barometric (BARO) pressure.
- The Intake Air Temperature (IAT).
- The engine RPM.