P1446 2004 Infiniti G35 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 2004 Infiniti G35 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 2004 Infiniti G35 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 2004 Infiniti G35?
- 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 2004 Infiniti G35?
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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1446 2004 Infiniti G35 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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Frequently Asked Questions about P1446 2004 Infiniti G35 Code
1. What are common symptoms of OBDII code P1446 on a 2004 Infiniti G35?
The common symptoms include the check engine light coming on, decreased fuel efficiency, and potential difficulty starting the vehicle.
2. What does the OBDII code P1446 in a 2004 Infiniti G35 indicate?
OBDII code P1446 specifically pertains to the EVAP Canister Vent Control Valve Close malfunction in the vehicle's emission control system.
3. What are some possible causes of OBDII code P1446 on a 2004 Infiniti G35?
Potential causes include a faulty EVAP canister vent control valve, a damaged vacuum hose, a leak in the EVAP system, or electrical issues related to the valve.
4. How can I diagnose the EVAP Canister Vent Control Valve Close issue in my 2004 Infiniti G35?
Diagnosis typically involves using an OBDII scanner to retrieve the specific trouble code, inspecting the EVAP system components for damage or leaks, and testing the vent control valve for proper operation.
5. Can I continue driving my 2004 Infiniti G35 with OBDII code P1446?
It is recommended not to ignore the issue and have the vehicle diagnosed and repaired promptly to prevent potential damage to the emission control system and ensure optimal vehicle performance.
6. How can I repair the EVAP Canister Vent Control Valve Close problem in my 2004 Infiniti G35?
Repair may involve replacing the faulty vent control valve, repairing or replacing damaged vacuum hoses, addressing any leaks in the EVAP system, and clearing the trouble code with an OBDII scanner.
7. Are there any DIY tips for troubleshooting OBDII code P1446 in a 2004 Infiniti G35?
While some basic inspections like checking for loose or damaged hoses can be done by DIY enthusiasts, diagnosing and repairing the EVAP system issue may require professional expertise and specialized tools.
8. Can a loose gas cap trigger OBDII code P1446 in a 2004 Infiniti G35?
While a loose gas cap can trigger an EVAP system-related trouble code, OBDII code P1446 specifically points to a malfunction in the EVAP Canister Vent Control Valve Close system.
9. How much does it typically cost to repair OBDII code P1446 in a 2004 Infiniti G35?
The repair costs can vary depending on the exact cause of the issue, but it is advisable to budget for potential expenses related to parts replacement, labor, and diagnostic fees.
10. Is it necessary to reset the vehicle's computer after repairing OBDII code P1446 in a 2004 Infiniti G35?
Yes, it is essential to clear the trouble code and reset the vehicle's computer using an OBDII scanner after addressing the EVAP Canister Vent Control Valve Close problem to ensure proper functioning of the system.
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