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TuningBot DTC Database · v4.37.14

P0299 Turbo / Super Charger Underboost

Generic (OBD-II) interpretation + 1 manufacturer-specific in the TuningBot DTC database.

P · PowertrainEngineOBD2
Brand pages:Ford

Generic (OBD-II) interpretation

P0299
Turbo / Super Charger Underboost Generic · engine Data confidence 90%

The control module detected a fault associated with the Turbo / Super Charger Underboost circuit or function; the stored code identifies the affected component rather than a single failure mode.

Symptoms

  • Possible reduced power or limp mode
  • MIL illuminated

Possible causes

Mechanical fault

Recommended checks

  • Compare specified vs actual boost pressure with live data
  • Check charge-air hoses and intercooler connections for leaks
  • Check boost control solenoid operation
  • Check variable geometry / wastegate movement
  • Inspect wiring and connectors

Manufacturer-specific interpretations

Ford

1 interpretation
P0299:00
Turbocharger/Supercharger A Underboost Condition Ford · engine Data confidence 94%

Ford documents P0299:00 (no sub type information) for its 2024-2025 gasoline-engine OBD monitor strategy as turbocharger/supercharger a underboost condition. This three-byte interpretation is application-specific and identifies the detected monitor condition rather than a confirmed failed component.

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Compare commanded and measured values
  • Check applicable OEM service information
Applies to Ford gasoline-engine OBD applications|2024-2025 model years

Related and nearby codes

P02 range
P0200P0201P0202P0203P0204P0205P0206P0207P0208P0209P020AP020BP020CP020DP020EP020FP0210P0211

How to read P0299

P

Powertrain: engine, transmission and driveline systems.

0

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

299

Specific fault index within the subsystem.

Frequently asked questions about P0299

What does P0299 mean?

Turbo / Super Charger Underboost. The control module detected a fault associated with the Turbo / Super Charger Underboost circuit or function; the stored code identifies the affected component rather than a single failure mode.

Is P0299 generic or manufacturer-specific?

P0299 exists both as a generic OBD-II code (same meaning on every make) and with 1 manufacturer-specific interpretation(s): Ford. Always read it in the context of your vehicle.

Can TuningBot remove P0299 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. 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

ECU tuningStage 1 dyno results for Ford engines See the results →

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