Powertrain: engine, transmission and driveline systems.
2
Generic SAE-standard code: same meaning on every make.
AF1
Specific fault index within the subsystem.
Frequently asked questions about P2AF1
What does P2AF1 mean?
Intake Air O2 Sensor Negative Current Control Circuit High Bank 2. The control module detected that the signal in the Intake Air O2 Sensor Negative Current Control circuit stayed above the expected operating range.
Is P2AF1 generic or manufacturer-specific?
P2AF1 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2AF1 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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