The OBD2 code P006D signifies an issue with the correlation between the barometric pressure and the turbocharger or supercharger inlet pressure. Essentially, your vehicle’s computer has detected that the pressure readings from the turbocharger or supercharger and the ambient air pressure (barometric pressure) do not align as they should.
P006D quick overview
| Meaning | P006D: Barometric Pressure – Turbocharger/Supercharger Inlet Pressure Correlation |
| Is it serious? | Yes, it can lead to reduced engine performance and potential damage to the turbocharger system. |
| Possible causes | – Faulty wastegate actuator – Leaks in the intake system – Damaged boost control solenoid – Turbocharger component blockages or failures |
| How to diagnose? | Perform a thorough inspection of the turbocharger and related components. Check for leaks in the intake system. Verify the operation of the wastegate and boost control solenoid. Replace faulty components as identified, focusing on wastegate actuators or boost control solenoids if necessary. |
P006D Meaning
When you see the P006D code, think of it as your car telling you that the turbocharger, which boosts engine power by forcing extra air into the combustion chamber, isn’t communicating well with the outside world’s air pressure.
If the pressures don’t match up correctly, your car won’t perform as efficiently or powerfully as it should. This mismatch can be caused by a leak letting air escape, a blockage preventing air from moving freely, or a problem with the parts controlling the turbocharger’s pressure.
Car Diagnostics Training
- Car Electrical basics
- OBD-II scanner basics
- How to use an OBD reader
- Introduction to a Bi-directional Scan tool
- OBD scanner buyer’s guide + discounts
How to fix P006D – learn from mechanics
I looked into P006D service cases at iatn.com website where in the private forums the mechanics seek advice from other mechanics. I looked up a bunch of cases to help you decide how to fix your issue and see what would a real mechanic do to solve it.
Case #1: Volkswagen P006D
Vehicle information
2013 Volkswagen Golf GTI 2.0L Turbo
Issue + repair history
- Check engine light illuminated intermittently
- Turbo lag reported by driver
- Previous repair attempts: Turbocharger inspected, MAP sensor replaced
Other OBD2 Codes + Test Results
- P006D – Barometric Pressure – Turbocharger/Supercharger Inlet Pressure Correlation
Mechanic suggestions
- Perform thorough inspection of turbocharger and related components for any issues affecting pressure readings
- Check for leaks in the intake system
- Verify proper operation of wastegate and boost control solenoid
Final fix
Replaced wastegate actuator and conducted test drive to confirm issue resolution.
Case #2: Subaru P006D
Vehicle information
2017 Subaru WRX STI 2.5L Turbo
Issue + repair history
- MIL lamp on consistently
- Customer complained of reduced engine power
- Prior repair attempts: Turbocharger inspected, Boost pressure sensor replaced
Other OBD2 Codes + Test Results
- P006D – Barometric Pressure – Turbocharger/Supercharger Inlet Pressure Correlation
Mechanic suggestions
- Check turbocharger system for any blockages or leaks
- Inspect intercooler for damage or restrictions
- Test wastegate actuator for proper function
Final fix
Replaced wastegate actuator and performed test drive. No further issues reported by customer.
Case #3: Audi P006D
Vehicle information
2014 Audi A4 2.0T Premium 2.0L Turbo
Issue + repair history
- Check engine light illuminated periodically
- Turbo lag experienced during acceleration
- Previous repair attempts: Turbocharger examined, Intake system checked for leaks
Other OBD2 Codes + Test Results
- P006D – Barometric Pressure – Turbocharger/Supercharger Inlet Pressure Correlation
Mechanic suggestions
- Conduct comprehensive inspection of turbocharger assembly for any issues affecting pressure readings
- Check for vacuum leaks in the intake system
- Ensure proper operation of wastegate and boost control components
Final fix
Replaced boost control solenoid and cleared fault code. Confirmed resolution after test drive.
How to diagnose P006D
I made you an overview of solving this DTC, based on all the advice that was suggested by certified mechanics to address this issue in previously mentioned service cases.
| Diagnostic Step | Brief Explanation |
|---|---|
| Inspect turbocharger and components | Check the turbocharger, wastegate actuator, and related parts for damage or issues affecting pressure. |
| Check for intake system leaks | Look for any signs of air leaks in the intake system which could disrupt pressure readings. |
| Test wastegate and boost control solenoid | Ensure these components are functioning correctly to regulate turbocharger pressure accurately. |
| Replace faulty wastegate actuator/boost control solenoid | If these components are not operating properly, replacing them could resolve the issue. |
Car Diagnostics Training
- Car Electrical basics
- OBD-II scanner basics
- How to use an OBD reader
- Introduction to a Bi-directional Scan tool
- OBD scanner buyer’s guide + discounts
I test OBD-II scanners and make DIY Engine diagnostics guides to help you solve your car problems without having to depend on the mechanic. A lot of them will try to scam you or are just no help at all. About Juraj Lukacko