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TuningBot DTC Database · v4.37.14

P14A3 Diagnostic Trouble Code (3 interpretations)

3 manufacturer-specific interpretations across 2 manufacturers in the TuningBot DTC database.

P · PowertrainEmissionsOBD2
Brand pages:BMWPSA

BMW

1 interpretation
P14A3
Pressure Of Diesel Particulate Filter Implausible To Atmospheric Pressure Or Boost Pressure BMW · emissions Data confidence 62%

The control module detected a fault associated with the Pressure Of Diesel Particulate Filter Implausible To Atmospheric Pressure Or Boost Pressure circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by BMW.

PSA

2 interpretations
P14A3
EGR exchanger bypass : Confirmed jammed open (hot side) PSA · emissions Data confidence 72%

The control module detected that the EGR exchanger bypass is jammed or locked. Documented for the Continental SID 807 injection ECU (DV6C 1.6 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.

Applies to Peugeot Continental SID 807 injection ECU (DV6C 1.6 HDi)
P14A3
EGR exchanger by-pass : Confirmed jammed open (Hot side) PSA · emissions Data confidence 72%

The control module detected that the EGR exchanger by-pass is jammed or locked. Documented for the Delphi DCM 3.5 injection ECU (DW10C 2.0 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.

Applies to Peugeot Delphi DCM 3.5 injection ECU (DW10C 2.0 HDi)

Related and nearby codes

How to read P14A3

P

Powertrain: engine, transmission and driveline systems.

1

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

4A3

Specific fault index within the subsystem.

Frequently asked questions about P14A3

What does P14A3 mean?

Diagnostic Trouble Code (3 interpretations). The control module detected a fault associated with the Pressure Of Diesel Particulate Filter Implausible To Atmospheric Pressure Or Boost Pressure circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by BMW.

Is P14A3 generic or manufacturer-specific?

P14A3 is a manufacturer-specific code. In this database it is documented for: BMW, PSA. The same number can mean something different on other brands.

Can TuningBot remove P14A3 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.

Other file services

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