P00B8 OBD-II: MAP - Mass or Volume Air Flow Correlation
P00B8 Severity
Will P00B8 go away on its own?
Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.
For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.
Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.
What causes OBD-II fault code P00B8?
The Manifold Absolute Pressure (MAP) Sensor tells the engine control module (PCM) how much pressure is in the engine manifold. The Mass Airflow Sensor tells the PCM the amount of air flowing through the engine. The control module compares the two sensors to determine if one of the sensors has lost its calibration. If the PCM determines there is a calibration issue with one or both of the sensors, the PCM will set code P00B8.
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OBD II Fault Code
- OBD II P00B8
OBD-II Code Decreased engine performance is defined as a MAP - Mass or Volume Air Flow Correlation
The Manifold Absolute Pressure (MAP) Sensor tells the engine control module (PCM) how much pressure is in the engine manifold. The Mass Airflow Sensor tells the PCM the amount of air flowing through the engine. The control module compares the two sensors to determine if one of the sensors has lost its calibration. If the PCM determines there is a calibration issue with one or both of the sensors, the PCM will set code P00B8.
Decreased engine performance Symptoms
- Decreased engine performance
- Decreased engine performance
Common Problems That Trigger the P00B8 Code
- Manifold Absolute Pressure (MAP) sensor failure
- Mass Air Flow (MAF) sensor failure
- Powertrain Control Module (PCM) failure
- Vacuum leak
- Wiring issue
Common Repairs Needed for the P00B8 Code
Ask our experts about P00B8.
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