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TuningBot DTC Database · v4.37.14

P1446 Nissan - Evaporative emission (EVAP) canister purge system - vent control valve malfunction

Manufacturer-specific interpretation for Nissan. All interpretations of P1446

P · PowertrainEmissionsOBD2

What P1446 means

P1446
Evaporative emission (EVAP) canister purge system - vent control valve malfunction Nissan · emissions Data confidence 80%

The control module detected improper operation of the Evaporative emission (EVAP) canister purge system - vent control valve. This is the manufacturer-specific definition used by Nissan.

Possible causes

  • Wiring
  • EVAP pressure sensor
  • hose leak/blockage
  • EVAP vent valve
  • EVAP canister contaminated
  • ECM

Related and nearby codes

How to read P1446

P

Powertrain: engine, transmission and driveline systems.

1

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

446

Specific fault index within the subsystem.

Frequently asked questions about P1446

What does P1446 mean?

Evaporative emission (EVAP) canister purge system - vent control valve malfunction. The control module detected improper operation of the Evaporative emission (EVAP) canister purge system - vent control valve. This is the manufacturer-specific definition used by Nissan.

Is P1446 generic or manufacturer-specific?

P1446 is a manufacturer-specific code. In this database it is documented for: Nissan. The same number can mean something different on other brands.

Can TuningBot remove P1446 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 tuningStage 1 dyno results for Nissan engines See the results →

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