P00B8MAP - Mass or Volume Air Flow Correlation Bank 2
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- On engines with two intake paths, the control module compares the manifold pressure of bank 2 with the measured or calculated air quantity of that bank. P00B8 is set when the two do not fit together; the code does not say which value is wrong. As with its bank 1 counterpart, typical causes are an air leak, an exhaust gas recirculation valve that does not close, or a dirty or drifting sensor. Each sensor can be electrically fine on its own. No manufacturer description naming this exact code was found; the explanation follows its documented counterpart.
- What you may notice
- Check engine light on
- Rough running
- Mixture codes possible
- Likely causes
- LikelyAir leak in the intake of bank 2
- PossibleEGR valve dirty or sticking open
- PossibleManifold pressure sensor or air flow meter dirty or drifting
- RareWiring or connector faulty
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €50 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.