Powertrain: engine, transmission and driveline systems.
2
Generic SAE-standard code: same meaning on every make.
277
Specific fault index within the subsystem.
Frequently asked questions about P2277
What does P2277 mean?
Heated oxygen sensor (H028) 3, bank 2 - signal stuck rich. The control module registered the fault condition described as "Heated oxygen sensor (H028) 3, bank 2 - signal stuck rich".
Is P2277 generic or manufacturer-specific?
P2277 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2277 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.
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