OBD-II code · Powertrain (generic)
P00B8 MAP - Mass or Volume Air Flow Correlation Bank 2
The expected relationship between manifold absolute pressure (MAP) and mass airflow (MAF) on bank 2 is violated. One of the two sensors is reading incorrectly.
Is it safe to drive with P00B8?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyMAF sensor contaminated
- Most likelyIntake or vacuum leak
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–3 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Map Sensor, Mass Air Flow Sensor
Related codes
- P006AMAP - Mass or Volume Air Flow Correlation Bank 1
- P00B5Radiator Coolant Temperature Sensor Circuit Intermittent/Erratic
- P00B6Radiator Coolant Temperature/Engine Coolant Temperature Correlation
- P00B7Engine Coolant Flow Low/Performance
- P00B9Low Pressure Fuel System Pressure - Too Low. Low Ambient Temperature
- P00BALow Fuel Pressure - Forced Limited Power
- P00BBFuel Injector Insufficient Flow - Forced Limited Power
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.