P2261 to P2263 and P2562 to P2566: turbo bypass valve, missing boost and boost control position
The turbo bypass valve has a mechanical fault, the computer detected no boost pressure at all (P2262), the boost system is not performing, or the sensor that reports the position of the boost control (wastegate or variable vanes) has a fault.
SeverityHighCarrying on can cause expensive damage, so deal with it now.
Can you keep driving?Only as far as the workshopWhat does P2261 mean?
Where P0045 to P0049 cover the electrical control of boost, these codes describe the turbocharger not doing its job mechanically. A bypass valve that stays open leaks boost, a disconnected hose means no boost is built at all, and a vane or wastegate position sensor that reads wrong leaves the computer unable to set boost. The car feels flat and may go into limp mode; on a diesel, a turbo that has failed inside can also burn oil.
What causes P2261?
- A split or disconnected boost hose or intercooler pipe
- A bypass valve whose diaphragm has split
- Variable vanes or a wastegate seized with soot or rust
- A failing turbocharger with worn bearings
- A failed boost control position sensor or its wiring
What to check first for P2261
- Inspect every boost hose and the intercooler for splits and loose clamps
- Listen for a whistle or hiss under acceleration, which suggests a boost leak
- Check the turbocharger shaft for play and oil leaks, with the engine off and cold
- Compare desired and actual boost on a scan tool during a test drive
Can you drive with P2261?
Drive only to a workshop and gently, since power is usually limited. If you see blue smoke, hear a loud whine or the oil warning comes on, stop and have the car towed, because the turbocharger may be failing.
In states with an OBD-II emissions inspection, a car with the check engine light on fails the test until the fault is fixed.
Codes on this page
- P2261Turbo/Super Charger Bypass Valve - Mechanical
- P2262Turbo Boost Pressure Not Detected - Mechanical
- P2263Turbo/Super Charger Boost System Performance
- P2562Turbocharger Boost Control Position Sensor Circuit
- P2563Turbocharger Boost Control Position Sensor Circuit Range/Performance
- P2564Turbocharger Boost Control Position Sensor Circuit Low
- P2565Turbocharger Boost Control Position Sensor Circuit High
- P2566Turbocharger Boost Control Position Sensor Circuit Intermittent
Related codes
Checked on · Rafael Soares
These are the generic meanings every manufacturer shares. Each brand adds its own detail, so your car's handbook, its service information and a qualified mechanic have the last word. OdoKeep has no connection with any manufacturer, and the app does not read codes from the car.
