P2263: Turbo/Supercharger Boost System Performance
Severity: medium
What it means: The engine computer sees that the turbo (or supercharger) isn't making the boost it asked for, or is making too much. It's a performance code, so the cause can be the turbo itself, its actuator or linkage, a boost leak, or a sensor.
Safe to drive? Usually drivable gently, but power is often reduced, which makes merging and passing risky. Stop if you hear loud whining or grinding or see smoke.
Common symptoms
- Check engine light
- Low power or slow to build boost
- Other warning lights on some cars (for example SH-AWD on the Acura RDX)
Likely causes, ranked
- Worn turbo actuator linkage or failed actuatorShop
- Boost leak in hoses or intercooler pipesDIY or shop
- Faulty boost pressure sensor or wiringShop
- Worn-out turbochargerShop
Vehicle-specific notes
- 2007–2012 Acura RDX: On AcuraZine, owners with P2263 and the SH-AWD light were often told to replace the turbo. Several found a worn actuator eye bolt or pin, or a failed actuator, and one had an independent shop replace the actuator for about $610 including other work. Read the full answer · Source
What it means: The engine computer sees that the turbo (or supercharger) isn't making the boost it asked for, or is making too much. It's a performance code, so the cause can be the turbo itself, its actuator or linkage, a boost leak, or a sensor.
Severity: Medium. Safe to drive? Usually drivable gently, but power is often reduced, which makes merging and passing risky. Stop if you hear loud whining or grinding or see smoke.
DIY or shop?
DIY for checking boost hoses and clamps; shop for actuator testing and turbo work.
Before you replace parts
- Read all stored codes and freeze-frame data.
- Check boost hoses and intercooler pipes for cracks or loose clamps.
- Have the turbo actuator and its linkage checked for wear and smooth movement.
- Get a second opinion before paying for a whole new turbo.
Safety / mechanic note
Verify with a mechanic. Low power can make merging and passing unsafe. A code points to a circuit or system, not always a specific part.