P1491 OBD Trouble Code

1 result found

P1491 - Nissan
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

Evaporative emission (EVAP) canister purge system - bypass vacuum valve malfunction
Cause

Wiring, EVAP vacuum cut/bypass valve, hose leak/blockage, EVAP pressure sensor/vent valve, EVAP canister contaminated, ECM

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