P006A
MAP - Mass or Volume Air Flow Correlation Bank 1
The expected relationship between manifold absolute pressure (MAP) and mass airflow (MAF) on bank 1 is violated. One of the two sensors is reading incorrectly.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- MAF sensor contaminatedCommon
- Intake/vacuum leakCommon
- MAP sensor reading driftedPossible
Parts involved
- MAP Sensor
- Mass Air Flow Sensor
- Intake System
P006A is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.