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TuningBot DTC Database · v4.37.15

P243B Ford - Particulate Filter Restriction - Forced Limited Power (Bank 2)

Manufacturer-specific interpretation for Ford. All interpretations of P243B

P · PowertrainEmissionsDriveability: LimitedUDS

What P243B means

P243B:00
Particulate Filter Restriction - Forced Limited Power (Bank 2) Ford · emissions Data confidence 94%

Ford documents P243B:00 (no sub type information) for its 2024-2025 gasoline-engine OBD monitor strategy as particulate filter restriction - forced limited power (bank 2). 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

How to read P243B

P

Powertrain: engine, transmission and driveline systems.

2

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

43B

Specific fault index within the subsystem.

Frequently asked questions about P243B

What does P243B mean?

Particulate Filter Restriction - Forced Limited Power (Bank 2). Ford documents P243B:00 (no sub type information) for its 2024-2025 gasoline-engine OBD monitor strategy as particulate filter restriction - forced limited power (bank 2). This three-byte interpretation is application-specific and identifies the detected monitor condition rather than a confirmed failed component.

Is P243B generic or manufacturer-specific?

P243B 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 P243B 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

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

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