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TuningBot DTC Database · v4.37.14

P1338 Diagnostic Trouble Code (6 interpretations)

6 manufacturer-specific interpretations across 3 manufacturers in the TuningBot DTC database.

P · PowertrainEngineOBD2
Brand pages:HyundaiPSAVAG

Hyundai

1 interpretation
P1338
#8 MF Signal Line Short Hyundai · engine Data confidence 62%

The control module detected a fault associated with the #8 MF Signal Line Short 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.

PSA

3 interpretations
P1338
Misfiring fault on cylinders 2 PSA · engine Data confidence 72%

The stored code identifies a fault of the Misfiring fault on cylinders 2. Documented for the Bosch MED 17.4.x engine ECU (EP6 THP family) on Peugeot applications; the same PSA control units are also fitted to Citroën models. PSA documentation does not characterise the failure mode further.

Applies to Peugeot Bosch MED 17.4.x engine ECU (EP6 THP family)
P1338
Fault : misfirings on cylinder N°2 PSA · engine Data confidence 72%

The stored code identifies a fault of the Fault. Documented for the Bosch MEV17.4 engine ECU (EP6 1.6 VTi) on Peugeot applications; the same PSA control units are also fitted to Citroën models. PSA documentation does not characterise the failure mode further.

Applies to Peugeot Bosch MEV17.4 engine ECU (EP6 1.6 VTi)
P1338
High combustion misfiring on cylinder 2 PSA · engine Data confidence 72%

The stored code identifies a fault of the High combustion misfiring on cylinder 2. Documented for the Magneti Marelli MM6KP engine ECU (EW7A/EW10A) on Peugeot applications; the same PSA control units are also fitted to Citroën models. PSA documentation does not characterise the failure mode further.

Applies to Peugeot Magneti Marelli MM6KP engine ECU (EW7A/EW10A)

VAG

2 interpretations
P1338
Camshaft position (CMP) sensor, Bank 1 - open circuit/short to positive VAG · engine Data confidence 62%

The control module detected an interruption (open circuit) in the Camshaft position (CMP) sensor, Bank 1 circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Audi.

Possible causes

  • Wiring open circuit/short to positive
  • CMP sensor
Applies to Audi
P1338
Camshaft Position Sensor (G40) VAG · engine Data confidence 80%

The control module detected a fault associated with the Camshaft Position Sensor (G40) circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Volkswagen. Volkswagen Group tools also report it as fault code 17746. Documented stored variants include: Open or Short to Plus. Documented across Volkswagen Group applications (Audi, SEAT and Škoda included).

Symptoms

Malfunction Indicator Lamp (MIL) active

Possible causes

  • Camshaft Position Sensor (G40) faulty
  • Wiring/Connectors from/to Camshaft Position Sensor (G40) faulty

Recommended checks

  • Check Camshaft Adjustment
  • Check Camshaft Position Sensor (G40)
  • Check Wiring/Connectors from/to Camshaft Position Sensor (G40)
Applies to Volkswagen

Related and nearby codes

How to read P1338

P

Powertrain: engine, transmission and driveline systems.

1

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

338

Specific fault index within the subsystem.

Frequently asked questions about P1338

What does P1338 mean?

Diagnostic Trouble Code (6 interpretations). The control module detected a fault associated with the #8 MF Signal Line Short 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 P1338 generic or manufacturer-specific?

P1338 is a manufacturer-specific code. In this database it is documented for: Hyundai, PSA, VAG. The same number can mean something different on other brands.

Can TuningBot remove P1338 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.

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