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TuningBot DTC Database · v4.37.14

P2431 Air Injection System Air Flow/Pressure Sensor Circuit Range/Performance Bank 1

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainEngineOBD2

What P2431 means

P2431
Air Injection System Air Flow/Pressure Sensor Circuit Range/Performance Bank 1 Generic · engine Data confidence 85%

The control module judged the Air Injection System Air Flow/Pressure signal implausible: it stayed inside electrical limits but did not match the value expected for the current operating conditions.

Possible causes

  • Wiring
  • air flow/pressure sensor

Related and nearby codes

How to read P2431

P

Powertrain: engine, transmission and driveline systems.

2

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

431

Specific fault index within the subsystem.

Frequently asked questions about P2431

What does P2431 mean?

Air Injection System Air Flow/Pressure Sensor Circuit Range/Performance Bank 1. The control module judged the Air Injection System Air Flow/Pressure signal implausible: it stayed inside electrical limits but did not match the value expected for the current operating conditions.

Is P2431 generic or manufacturer-specific?

P2431 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P2431 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.

Other file services

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