P00B8

MAP - Mass or Volume Air Flow Correlation Bank 2

Moderate severity

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.

Common causes

MAF sensor contaminated
One of the most commonly reported causes for this code — check this first.
high
Typical part cost: $60-660
Intake or vacuum leak
One of the most commonly reported causes for this code — check this first.
high
Typical part cost: $60-660
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First things to check

1Confirm the code with a scan tool and check for additional related codes.
2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

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Related codes

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Frequently asked questions

What does P00B8 mean?

P00B8 means "MAP - Mass or Volume Air Flow Correlation Bank 2". It is a generic OBD-II code that points to a fault in the fuel & air metering / auxiliary emission controls.

What are the most common causes of P00B8?

maf sensor contaminated; intake or vacuum leak — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.

Can I keep driving with this code?

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.

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