P1446 Nissan Code - EVAP Canister Vent Control Valve Close
Quick Answer
The EVAP canister vent control valve is located on the EVAP canister and is used to seal the canister vent. Common causes include Faulty EVAP Pressure Sensor, EVAP Pressure Sensor harness is open or shorted, EVAP Pressure Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1446 Nissan indicates EVAP Canister Vent Control Valve Close.
- Common causes
- Common causes include Faulty EVAP Pressure Sensor, EVAP Pressure Sensor harness is open or shorted, EVAP Pressure Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1446 Nissan Description
This solenoid valve responds to signals from the Engine Control Module (ECM). When the ECM sends an ON signal, the coil in the solenoid valve is energized. A plunger will then move to seal the canister vent. The ability to seal the vent is necessary for the on board diagnosis of other evaporative emission control system components.
This solenoid valve is used only for diagnosis, and usually, remains opened. When the vent is closed, under normal purge conditions, the evaporative emission control system is depressurized and allows EVAP Control System (Small Leak) diagnosis.
What are the Possible Causes of the DTC P1446 Nissan?
- Faulty EVAP Pressure Sensor
- EVAP Pressure Sensor harness is open or shorted
- EVAP Pressure Sensor circuit poor electrical connection
- Blocked rubber tube to EVAP canister vent control valve
- EVAP Water separator
- EVAP canister is saturated with water
- Faulty EVAP canister vent control valve
How to Fix the DTC P1446 Nissan?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
2005 Nissan Pathfinder
2006 Nissan Pathfinder
2007 Nissan Pathfinder
2005-2007 Nissan Pathfinder Service Bulletin OBDII Code P1446
User Submitted Video
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1446 Nissan code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Nissan Models
- P1446 2002 Nissan Altima Sedan — EVAP Canister Vent Control Valve Close
- P1446 2003 Nissan Altima Sedan — EVAP Canister Vent Control Valve Close
- P1446 2004 Nissan Altima Sedan — EVAP Canister Vent Control Valve Close
- P1446 2005 Nissan Altima Sedan — EVAP Canister Vent Control Valve Close
- P1446 2004 Nissan Maxima — EVAP Canister Vent Control Valve Close
- P1446 2005 Nissan Maxima — EVAP Canister Vent Control Valve Close
- P1446 2002 Nissan Sentra — EVAP Canister Vent Control Valve Close
- P1446 2003 Nissan Sentra — EVAP Canister Vent Control Valve Close
- P1446 2004 Nissan Sentra — EVAP Canister Vent Control Valve Close
- P1446 2005 Nissan Sentra — EVAP Canister Vent Control Valve Close
- P1446 2006 Nissan Sentra — EVAP Canister Vent Control Valve Close
Frequently Asked Questions about P1446 Nissan Code
No Frequently Asked Questions about P1446 Nissan Code found.
Discuss the causes and fixes for P1446 Nissan OBDII Code
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so what part would have to be replaced if this code came up. i was told at orielly auto that the canister vent purge valve would have to be changed. what will happen to your vehicle if you keep driving your vehicle like this.
heres what came up at autozone............
Troubleshooting P1146
OEM Brand: Nissan/DatsunDefinition
aaEVAP canister vent control valve (closed)
Probable causeaa1- Failed canister vent solenoid
aa2-Failed EVAP pressure sensor -
If you don't replaced the valve, the engine light will remain ON and it wont pass the smog test.
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I already change the valve and the light stays on, the canister has no water and code 1446 still appears, What is wrong?
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What model and year is your Nissan? Check the hose that connects from the valve to the body, debris or spider web can clogged the vent hose and blocking vapors.
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Do you have 4 or 6 cylinder engine? The most common cause that triggers the P1446 is the EVAP canister vent solenoid.
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