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TuningBot DTC Database · v4.37.15

P0519 Idle Air Control System Performance

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

P · PowertrainEngineOBD2

What P0519 means

P0519
Idle Air Control System Performance Generic · engine Data confidence 90%

The control module judged the Idle Air Control System behaviour implausible for the current operating conditions.

Possible causes

  • Wiring
  • poor connection
  • lac valve
  • ECM

Related and nearby codes

How to read P0519

P

Powertrain: engine, transmission and driveline systems.

0

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

519

Specific fault index within the subsystem.

Frequently asked questions about P0519

What does P0519 mean?

Idle Air Control System Performance. The control module judged the Idle Air Control System behaviour implausible for the current operating conditions.

Is P0519 generic or manufacturer-specific?

P0519 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P0519 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

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