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TuningBot DTC Database · v4.37.14

P2DFD EVAP System Purge Pump Performance

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

P · PowertrainEmissionsOBD2

What P2DFD means

P2DFD
EVAP System Purge Pump Performance Generic · emissions Data confidence 65%

The control module judged the EVAP System Purge Pump behaviour implausible for the current operating conditions.

Symptoms

  • MIL illuminated
  • Possible fuel smell in case of larger leaks

Possible causes

  • Loose or faulty fuel filler cap
  • Cracked EVAP hose or line
  • Purge or vent valve fault
  • Fuel tank pressure sensor fault
  • Leak detection pump fault

Recommended checks

  • Check fuel filler cap seating first
  • Read fuel tank pressure sensor values
  • Actuate purge and vent valves and verify response
  • Smoke-test the EVAP system for leaks

Related and nearby codes

How to read P2DFD

P

Powertrain: engine, transmission and driveline systems.

2

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

DFD

Specific fault index within the subsystem.

Frequently asked questions about P2DFD

What does P2DFD mean?

EVAP System Purge Pump Performance. The control module judged the EVAP System Purge Pump behaviour implausible for the current operating conditions.

Is P2DFD generic or manufacturer-specific?

P2DFD is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P2DFD 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

ECU tuningDyno-tested results by model and engine See the results →

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