P2262
Turbocharger/Supercharger Boost Pressure A Not Detected - Mechanical
Turbocharger / boost control
Generic OBD-II
Medium
What it means
P2262 means the engine isn't producing the boost pressure it should, and the ECM has traced it to a mechanical problem rather than a sensor or wiring fault. Common causes are a stuck wastegate, a boost leak, or a worn or sticking turbocharger. The car usually still runs, but power is reduced and it may drop into limp mode.
Medium
Can I keep driving? Usually drivable but down on power, often in a reduced-power limp mode — fix it before towing or hard driving to avoid further turbo damage.
Common symptoms
What you'll notice
- Noticeable loss of power and sluggish acceleration
- Engine may go into reduced-power (limp) mode
- Turbo lag or no boost felt under load
- Check-engine light on
Common causes
Most likely first
- Stuck or seized wastegate / boost control valveLikely
- Boost leak — split hose, loose clamp, or cracked intercooler pipeCommon
- Binding or carboned-up variable-vane (VNT) turbo mechanismCommon
- Worn turbocharger (bearings, shaft, or vanes)Less often
- Restricted or damaged charge-air ductingLess often
How to diagnose & fix
Work through it in order
- Read freeze-frame data, then inspect all boost hoses, clamps, and the intercooler for leaks or splits.
- Check the wastegate/boost-control actuator for free movement and correct vacuum/electrical operation.
- On variable-vane turbos, check the VNT mechanism for sticking from carbon or soot.
- Compare actual vs commanded boost with a scan tool to confirm the shortfall.
- If the turbo itself is worn (play in the shaft, oil in the ducting), plan to rebuild or replace it. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P2262?+
Short trips are usually fine, but the engine will be down on power and may be in limp mode. Avoid hard driving or towing until it is repaired.
Can I just clear P2262?+
You can clear it, but if the wastegate, turbo, or a boost leak is at fault it will return as soon as the engine is put under load.
Related codes
Often seen with P2262
Read & clear P2262 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