P006DBarometric Pressure - Turbocharger/Supercharger Inlet Pressure Correlation Bank 1
- 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
- Without boost, for example with the engine stopped or at low load, the pressure sensor ahead of the turbocharger or supercharger must read about the same as the barometric pressure sensor. P006D is set when the difference is too large; some manufacturers compare against an estimated barometric value instead and run the check once per ignition cycle. Typical causes are a faulty inlet pressure sensor, a faulty barometric sensor (often inside the control module) or a wiring or reference-voltage fault. Each sensor can be electrically fine on its own; regulations require such plausibility checks for input sensors with a code of their own.
- What you may notice
- Check engine light on
- Often no further symptoms
- Reduced boost possible
- Likely causes
- LikelyInlet pressure sensor faulty
- PossibleBarometric pressure sensor or control module faulty
- PossibleWiring, connector or 5 V reference faulty
- RareClogged air filter lowering pressure ahead of the compressor
- 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: €40 – €250
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.