P2262 code meaning
Turbocharger/Supercharger Boost Pressure A Not Detected - Mechanical
Powertrain system Generic code P22xx codes Check engine light
What P2262 means
P2262 says boost pressure A does not appear at all although the charging system should be producing it, and the cause appears to be mechanical rather than a sensor fault. The control unit sees the pressure after the compressor stay near ambient or close to manifold pressure. VW's 2014 book for the supercharged Touareg 3.0 TSI uses the ratio of boost to manifold pressure and flags it below a band of 1 to 1.25. Volvo technical journal 31319 (2016 four-cylinder B4204T23) traced P2262 together with P02CD to a fresh-air hose that had slipped off the air filter housing at the MAF; a spring clamp prevents a repeat. Unlike P0299, which measures a shortfall against the target, P2262 stands for boost missing altogether; P2263 rates overall control performance and P226B the opposite extreme. Acceleration feels flat, and many engines limit torque.
P2262 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 6 hours
- Clears after repairAfter a drive cycle
Symptoms of P2262
- Clear loss of power, no turbo or supercharger pull
- MIL on, often with a reduced-power mode
- Hissing or whistling from the intake if a hose has come off
Common causes of P2262
- Most likelyIntake or charge-air hose disconnected or split, so the compressor cannot build pressure
- PossibleWastegate or bypass stuck open, corroded or with a broken linkage
- PossibleDamaged turbocharger or supercharger (bearing wear, broken drive, wheel damage)
- Less likelyBoost pressure sensor or its hose blocked or detached
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
TurbochargerCharge air pipeWastegate actuatorBoost pressure sensor
What each part of P2262 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 2 | Area: fuel and air metering (injector circuit). |
| 62 | The exact fault in that area. |
What to do next
- Note P2262 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2262
What does P2262 mean?
P2262 means "Turbocharger/Supercharger Boost Pressure A Not Detected - Mechanical". P2262 says boost pressure A does not appear at all although the charging system should be producing it, and the cause appears to be mechanical rather than a sensor fault. It is a generic code, so it means the same on every make.
Is it safe to drive with P2262?
Drive gently and only to a workshop. With P2262 the car can go into limp mode (reduced power) to protect itself.
Will P2262 fail an emissions test?
Yes, it can. P2262 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2262 to fix?
Difficulty: medium. A typical repair takes 0.5 to 6 hours of work. This is a job for a workshop.
Will P2262 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.