P2263
Turbocharger/Supercharger A Boost System Performance
Turbo / boost control
Generic OBD-II
Medium
What it means
P2263 means the engine computer sees the boost pressure from the turbo or supercharger falling outside the expected range — either too high or too low for the demand. The usual result is reduced power or a limp-mode derate. Common causes are a stuck wastegate, a boost leak, or a faulty boost-control solenoid or sensor.
Medium
Can I keep driving? Usually drivable, but expect reduced power or limp mode — over- or under-boost can stress the engine, so fix it before hard driving.
Common symptoms
What you'll notice
- Check-engine light on
- Noticeable loss of power or reduced acceleration
- Engine may drop into limp/reduced-power mode
- Boost surging, hissing, or a whistle from a leak
Common causes
Most likely first
- Stuck or leaking wastegate / boost-control valveLikely
- Faulty boost-control (turbo) solenoid or its vacuum linesCommon
- Boost leak — split hose, loose clamp, or intercooler leakCommon
- Faulty boost/MAP pressure sensor giving a wrong readingLess often
- Wiring or connector fault at the boost-control actuatorLess often
- Worn turbocharger or sticking variable-vane mechanismLess often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and note whether boost is too high or too low.
- Inspect all charge-air hoses, clamps, and the intercooler for leaks.
- Check the wastegate/boost-control actuator and its vacuum lines for sticking.
- Test the boost-control solenoid and its wiring/connector.
- Verify the MAP/boost sensor reading against actual pressure, then clear and re-test.
FAQ
Quick answers
Is it safe to drive with P2263?+
Short trips are usually fine, but power will be down and the engine may be in limp mode. Persistent over-boost can damage the turbo or engine, so don't drive hard until it's fixed.
Can I just clear P2263?+
It clears, but returns once the ECM sees boost out of range again. Find the leak, sticking wastegate, or sensor fault first.
Related codes
Often seen with P2263
Read & clear P2263 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX