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TuningBot DTC Database · v4.37.15

P025F Turbocharger/Supercharger Boost Sensor B Intermittent/Erratic

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainEngineOBD2

What P025F means

P025F
Turbocharger/Supercharger Boost Sensor B Intermittent/Erratic Generic · engine Data confidence 65%

The control module detected an unstable or intermittent signal in the Turbocharger/Supercharger Boost Sensor B circuit.

Symptoms

  • Possible reduced power or limp mode
  • MIL illuminated
  • Possible abnormal turbocharger noise

Possible causes

  • Turbocharger actuator or position sensor fault
  • Sticking variable geometry mechanism
  • Charge-air or vacuum leak
  • Wiring or connector fault

Recommended checks

  • Compare specified vs actual boost with live data
  • Check actuator movement over the full range
  • Check hoses and vacuum lines
  • Inspect wiring and connectors

Related and nearby codes

P02 range
P0200P0201P0202P0203P0204P0205P0206P0207P0208P0209P020AP020BP020CP020DP020EP020FP0210P0211

How to read P025F

P

Powertrain: engine, transmission and driveline systems.

0

Generic SAE-standard code: same meaning on every make.

25F

Specific fault index within the subsystem.

Frequently asked questions about P025F

What does P025F mean?

Turbocharger/Supercharger Boost Sensor B Intermittent/Erratic. The control module detected an unstable or intermittent signal in the Turbocharger/Supercharger Boost Sensor B circuit.

Is P025F generic or manufacturer-specific?

P025F is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P025F at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

Stage 1/2/3 TuningDPF RemovalEGR RemovalAdBlue / SCR RemovalDTC RemovalIMMO OFFSpeed Limiter (Vmax)

Understand the system behind this code: Diagnostic Strategy and DTC Logic

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