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TuningBot DTC Database · v4.37.15

P1124 Hyundai - Fuel System Lean - Idle

Manufacturer-specific interpretation for Hyundai. All interpretations of P1124

P · PowertrainEngineOBD2

What P1124 means

P1124
Fuel System Lean - Idle Hyundai · engine Data confidence 62%

The control module detected a fault associated with the Fuel System Lean - Idle circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Hyundai.

Possible causes

  • HO2S
  • fuel pressure
  • fuel system
  • mechanical fault
  • ECM

Related and nearby codes

How to read P1124

P

Powertrain: engine, transmission and driveline systems.

1

Manufacturer-defined range: the meaning can differ between brands.

124

Specific fault index within the subsystem.

Frequently asked questions about P1124

What does P1124 mean?

Fuel System Lean - Idle. The control module detected a fault associated with the Fuel System Lean - Idle circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Hyundai.

Is P1124 generic or manufacturer-specific?

P1124 is a manufacturer-specific code. In this database it is documented for: Hyundai. The same number can mean something different on other brands.

Can TuningBot remove P1124 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 Hyundai engines See the results →

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