P226B
Turbocharger/Supercharger A Boost Pressure Too High - Mechanical
P226B is an OBD-II diagnostic trouble code meaning: Turbocharger/Supercharger A Boost Pressure Too High - Mechanical. Common causes: wastegate jammed, turbine vacuum regulator malfunction. Estimated repair cost: $56–278.
Symptoms
- Reduced engine power
- Black smoke from the exhaust pipe
- Noise or whistle from the turbocharger
- Uneven engine operation
- Check Engine Light Is On
Causes
- Wastegate jammed
- Turbine vacuum regulator malfunction
- Mechanical damage to the turbocharger
- Contamination or blockage of the charging system
- Errors in ECU software
How to Fix
- Checking the operation of the bypass valve
- Diagnostics of the vacuum turbine control system
- Inspect the turbocharger for damage
- Cleaning or replacing components of the charging system
- Updating the ECU firmware if necessary
Related codes
Error P226B by Vehicle Brand
FAQ
What does the P226B code mean?
P226B is an OBD-II diagnostic trouble code that indicates: Turbocharger/Supercharger A Boost Pressure Too High - Mechanical
What causes a P226B error code?
The most common causes of P226B include: Wastegate jammed; Turbine vacuum regulator malfunction; Mechanical damage to the turbocharger; Contamination or blockage of the charging system.
How do I fix a P226B diagnostic trouble code?
To fix P226B: Checking the operation of the bypass valve. Diagnostics of the vacuum turbine control system. Inspect the turbocharger for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P226B?
Do not drive — repair immediately
How much does it cost to fix P226B?
The estimated repair cost for P226B is $56–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat