What does code P1447 mean?

Q: What does code P1447 mean?

EVAP Control System Purge Flow Monitoring. P1447 on Nissan vehicles means the engine computer has detected a problem with the evaporative emission control system's purge flow, specifically that the flow of fuel vapor from the charcoal canister into the intake manifold is not matching expected values during the self-test. The computer monitors purge flow by watching fuel tank pressure or purge valve response and sets this code when the measured flow is outside the programmed range.

DTC codes / Nissan codes / P1447

P1447 · NissanEVAP Control System Purge Flow Monitoring

P1447 on Nissan vehicles means the engine computer has detected a problem with the evaporative emission control system's purge flow, specifically that the flow of fuel vapor from the charcoal canister into the intake manifold is not matching expected values during the self-test. The computer monitors purge flow by watching fuel tank pressure or purge valve response and sets this code when the measured flow is outside the programmed range.

SystemPowertrain

Code typeNissan specific

SeverityMedium

Fix difficultyIntermediate

AreaAuxiliary emission controls

Guidance is general and written for Nissan vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.