P2DFDEVAP System Purge Pump Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- Some turbocharged and hybrid engines cannot count on intake vacuum to empty the charcoal canister, so an electric purge pump moves the fuel vapour into the intake. P2DFD means this pump does not achieve the expected effect, for instance the pressure or speed it should reach. Nissan uses the code on the 2022 Rogue with the KR15DDT engine: bulletin NTB22-066 has the technician reseat the pump connector under the intake tube and run the engine for a minute before any further diagnosis. Hyundai names P2DFD00 among the codes linked to EGR condensation and intake icing on Tucson and Santa Fe hybrids, addressed by an ECM update (26-01-081H), and keeps its own code P1DFD00 for pump target speed. A Continental patent uses a pressure sensor in the pump module for plausibility checks. CARB demands purge flow monitoring.
- What you may notice
- MIL on, usually without noticeable change in driving
- EVAP readiness not complete, emissions inspection may fail
- Occasional fuel smell when the canister is not purged
- Likely causes
- LikelyPump connector not fully latched (Nissan Rogue 2022)
- PossiblePurge pump motor or impeller worn, pump no longer reaches its speed or pressure
- PossiblePurge hose cracked, disconnected or blocked between canister, pump and intake
- RareCondensation or ice in the intake path, needs ECM update (Hyundai hybrids)
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €20 – €500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.