P1492 Infiniti Code - EVAP Canister Purge Control/Solenoid Valve
Quick Answer
The system control the vacuum signal applied to the EVAP canister purge control valve. Common causes include Faulty EVAP Canister Purge Control/Solenoid Valve, EVAP Canister Purge Control/Solenoid Valve harness is open or shorted, EVAP Canister Purge Control/Solenoid Valve 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
- P1492 Infiniti indicates EVAP Canister Purge Control/Solenoid Valve.
- Common causes
- Common causes include Faulty EVAP Canister Purge Control/Solenoid Valve, EVAP Canister Purge Control/Solenoid Valve harness is open or shorted, EVAP Canister Purge Control/Solenoid Valve 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 P1492 Infiniti Description
When the Engine Control Module (ECM) detects any of the following conditions, current does not flow through the EVAP canister purge control solenoid valve.
The Solenoid valve cuts the vacuum signal so that the EVAP canister purge control valve remains closed.
Conditions:
- Start switch ON
- Closed throttle position
- Low or high engine coolant temperature
- During deceleration
- Engine stopped
What are the Possible Causes of the DTC P1492 Infiniti?
- Faulty EVAP Canister Purge Control/Solenoid Valve
- EVAP Canister Purge Control/Solenoid Valve harness is open or shorted
- EVAP Canister Purge Control/Solenoid Valve circuit poor electrical connection
How to Fix the DTC P1492 Infiniti?
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 P1492 Infiniti 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 P1492 Infiniti Code
1. What are common symptoms of OBDII code P1492 in an Infiniti related to the EVAP Canister Purge Control/Solenoid Valve?
- Common symptoms include rough idling, poor fuel efficiency, and the illumination of the check engine light.
2. What are the possible causes of OBDII code P1492 in an Infiniti?
- The code P1492 in an Infiniti is commonly caused by a faulty EVAP Canister Purge Control Valve or a vacuum leak in the EVAP system.
3. How can I diagnose the OBDII code P1492 in my Infiniti?
- Diagnosing the code involves using an OBDII scanner to retrieve the specific trouble code, checking for leaks in the EVAP system, and testing the functionality of the EVAP Canister Purge Control Valve.
4. Is it safe to continue driving my Infiniti with OBDII code P1492 related to the EVAP system?
- While the vehicle may still be drivable with this code, it is recommended to address the issue promptly to prevent further damage to the engine or emissions system.
5. Can I repair OBDII code P1492 in my Infiniti at home?
- Depending on your skill level and access to tools, you may be able to replace the EVAP Canister Purge Control Valve yourself. However, diagnosing and repairing vacuum leaks may require professional help.
6. What is the purpose of the EVAP Canister Purge Control Valve in an Infiniti?
- The EVAP Canister Purge Control Valve controls the flow of fuel vapors from the fuel tank to the engine, helping to reduce emissions and improve fuel efficiency.
7. Will resetting the check engine light clear OBDII code P1492 in an Infiniti?
- Resetting the check engine light may temporarily turn it off, but if the underlying issue causing code P1492 is not addressed, the light will likely come back on.
8. How much does it typically cost to repair OBDII code P1492 in an Infiniti at a repair shop?
- The cost of repairing code P1492 can vary depending on the exact cause, but it may range from $100 to $300 for parts and labor.
9. Can a faulty EVAP Canister Purge Control Valve cause other problems in an Infiniti?
- Yes, a faulty valve can lead to other issues such as decreased engine performance, failed emissions tests, and potential damage to the catalytic converter.
10. How often should the EVAP system be inspected in an Infiniti to prevent OBDII code P1492 and related issues?
- It is recommended to have the EVAP system inspected during routine maintenance to catch any potential issues early and prevent the occurrence of code P1492.
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