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TuningBot DTC Database · v4.37.15

P2338 Cylinder 3 - above knock threshold

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

P · PowertrainEngineOBD2

What P2338 means

P2338
Cylinder 3 - above knock threshold Generic · engine Data confidence 85%

The control module detected a fault associated with the Cylinder 3 - above knock threshold circuit or function; the stored code identifies the affected component rather than a single failure mode.

Possible causes

  • Ignition timing
  • knock sensor (KS)
  • fuel quality
  • mechanical fault

Related and nearby codes

How to read P2338

P

Powertrain: engine, transmission and driveline systems.

2

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

338

Specific fault index within the subsystem.

Frequently asked questions about P2338

What does P2338 mean?

Cylinder 3 - above knock threshold. The control module detected a fault associated with the Cylinder 3 - above knock threshold circuit or function; the stored code identifies the affected component rather than a single failure mode.

Is P2338 generic or manufacturer-specific?

P2338 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P2338 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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