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TuningBot DTC Database · v4.37.15

P2195 Heated oxygen sensor (HO2S) 1, bank 1 - signal stuck lean

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

P · PowertrainEmissionsOBD2
Brand pages:Ford

Generic (OBD-II) interpretation

P2195
Heated oxygen sensor (HO2S) 1, bank 1 - signal stuck lean Generic · emissions Data confidence 85%

The control module registered the fault condition described as "Heated oxygen sensor (HO2S) 1, bank 1 - signal stuck lean".

Symptoms

  • MIL illuminated
  • Possible increased fuel consumption
  • Possible unstable idle

Possible causes

  • HO2S
  • fuel pressure
  • injectors
  • intake leak

Recommended checks

  • Read live sensor voltage/current and heater status
  • Inspect wiring and connectors
  • Check for exhaust leaks near the sensor
  • Check fuel trim values for upstream mixture faults

Manufacturer-specific interpretations

Ford

1 interpretation
P2195:00
Lack of switching, sensor indicates lean, Bank 1 Ford · engine Data confidence 94%

Ford documents P2195:00 (no sub type information) for its 2024-2025 gasoline-engine OBD monitor strategy as lack of switching, sensor indicates lean, bank 1. 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 P2195

P

Powertrain: engine, transmission and driveline systems.

2

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

195

Specific fault index within the subsystem.

Frequently asked questions about P2195

What does P2195 mean?

Heated oxygen sensor (HO2S) 1, bank 1 - signal stuck lean. The control module registered the fault condition described as "Heated oxygen sensor (HO2S) 1, bank 1 - signal stuck lean".

Is P2195 generic or manufacturer-specific?

P2195 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 P2195 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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