P1446 2004 NISSAN ALTIMA SEDAN - EVAP Canister Vent Control Valve Close
P1446 2004 NISSAN ALTIMA SEDAN Possible Causes
- 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 do I fix code P1446 2004 NISSAN ALTIMA SEDAN?Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
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Cost of diagnosing the P1446 2004 NISSAN ALTIMA SEDAN code
Labor: 1.0The cost of diagnosing the P1446 2004 NISSAN ALTIMA SEDAN code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected?EVAP canister vent control valve remains closed under specified driving conditions.
- Engine Light ON (or Service Engine Soon Warning Light)
P1446 2004 NISSAN ALTIMA SEDAN DescriptionThe EVAP canister vent control valve is located on the EVAP canister and is used to seal the canister vent.
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.
More InformationNeed more information on how to fix the P1446 2004 NISSAN ALTIMA SEDAN code?
Get Access to Factory Service Manuals
Need more help?Get the P1446 2004 Nissan Altima Sedan code diagnosed by a professional: Find a repair shop in your area
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