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TuningBot DTC Database · v4.37.15

P1340 PSA - Diagnostic Trouble Code (3 interpretations)

Manufacturer-specific interpretation for PSA. All interpretations of P1340

P · PowertrainEngineOBD2

What P1340 means

P1340
Misfiring fault on cylinders 4 PSA · engine Data confidence 72%

The stored code identifies a fault of the Misfiring fault on cylinders 4. 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)
P1340
Fault : misfirings on cylinder N°4 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)
P1340
High combustion misfiring on cylinder 4 PSA · engine Data confidence 72%

The stored code identifies a fault of the High combustion misfiring on cylinder 4. 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)

Related and nearby codes

How to read P1340

P

Powertrain: engine, transmission and driveline systems.

1

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

340

Specific fault index within the subsystem.

Frequently asked questions about P1340

What does P1340 mean?

Diagnostic Trouble Code (3 interpretations). The stored code identifies a fault of the Misfiring fault on cylinders 4. 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.

Is P1340 generic or manufacturer-specific?

P1340 is a manufacturer-specific code. In this database it is documented for: PSA. The same number can mean something different on other brands.

Can TuningBot remove P1340 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 PSA engines See the results →

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