P0447 on Infiniti
Evaporative Emission System Vent Control Circuit Open
P0447 on Infiniti vehicles indicates evaporative emission system vent control circuit open. Au7o has documented this code across 1 Infiniti model — most commonly on FX50. This code means the engine computer detected an electrical open (broken or disconnected circuit) in the control wiring for the EVAP system's vent valve, which lets fresh air into the charcoal canister that captures fuel vapors. Because the computer can no longer command the vent valve to open or close, it cannot properly seal the fuel system to test for vapor leaks. This is an emissions and self-test issue rather than a safety or driveability problem, so the car generally runs fine but will fail an emissions test. Typical repair costs on Infiniti range from $40 to $450, depending on the specific model and root cause.
Common Causes of P0447
- •Faulty EVAP vent valve/solenoid (internal electrical failure)
- •Damaged, corroded, or disconnected wiring to the vent solenoid
- •Bad or loose electrical connector at the vent valve
- •Open circuit or chafed wire in the EVAP harness
- •Blown fuse feeding the vent control circuit
- •Vent valve clogged with dirt or debris
- •PCM/ECM driver fault (rare)
P0447 on Infiniti by Model
Infiniti FX50(1 issue)
- EVAP Leak / Check Engine Light from Fuel Vapor Components2009-2013
Owners occasionally report check-engine lights caused by EVAP system leaks, often related to the gas cap, purge control valve, vent valve, or associated hoses. These faults usually do not affect drivability much, but they can prevent emissions readiness and trigger recurring warning lights.
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What does P0447 mean on Infiniti?▼
P0447 stands for "Evaporative Emission System Vent Control Circuit Open." This code means the engine computer detected an electrical open (broken or disconnected circuit) in the control wiring for the EVAP system's vent valve, which lets fresh air into the charcoal canister that captures fuel vapors. Because the computer can no longer command the vent valve to open or close, it cannot properly seal the fuel system to test for vapor leaks. This is an emissions and self-test issue rather than a safety or driveability problem, so the car generally runs fine but will fail an emissions test. On Infiniti specifically, this code is documented across 1 model.
What causes P0447 on Infiniti vehicles?▼
Common causes on Infiniti: Faulty EVAP vent valve/solenoid (internal electrical failure), Damaged, corroded, or disconnected wiring to the vent solenoid, Bad or loose electrical connector at the vent valve, Open circuit or chafed wire in the EVAP harness, Blown fuse feeding the vent control circuit. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0447 on a Infiniti?▼
Repair costs on Infiniti range from $40 to $450, depending on the specific model and root cause.
Which Infiniti models have P0447 documented?▼
Au7o has documented P0447 on 1 Infiniti model: FX50.