OBD-II code · Powertrain (generic)
P006B MAP - Exhaust Pressure Correlation
The relationship between manifold absolute pressure and exhaust back pressure is implausible. One of the two pressure sensors is faulty or there is a major leak in either path.
Is it safe to drive with P006B?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyExhaust back-pressure sensor faulty
- PossibleDPF or exhaust path leak
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–6 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Map Sensor, Exhaust Pressure Sensor
Related codes
- P0068MAP/MAF - Throttle Position Correlation
- P0069Manifold Absolute Pressure - Barometric Pressure Correlation
- P006AMAP - Mass or Volume Air Flow Correlation Bank 1
- P006CMAP - Turbocharger/Supercharger Inlet Pressure Correlation
- P006DBarometric Pressure - Turbocharger/Supercharger Inlet Pressure Correlation Bank 1
- P006ETurbocharger/Supercharger Boost Control A Supply Voltage Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.