Post catalyst fuel trim system too rich (Bank 2)
Ford · emissions
Data confidence94%
Ford documents P2099:00 (no sub type information) for its 2024-2025 gasoline-engine OBD monitor strategy as post catalyst fuel trim system too rich (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 toFord gasoline-engine OBD applications|2024-2025 model years
Powertrain: engine, transmission and driveline systems.
2
Generic SAE-standard code: same meaning on every make.
099
Specific fault index within the subsystem.
Frequently asked questions about P2099
What does P2099 mean?
Post Catalyst Fuel Trim System Too Rich Bank 2. The control module detected that the air-fuel mixture stayed richer than the target despite full corrective control (Post Catalyst Fuel Trim System).
Is P2099 generic or manufacturer-specific?
P2099 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 P2099 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.
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