Nissan Altima P0455 EVAP Control System

7 Steps to Prevent Your Car from Breaking Down

Driving a car comes with responsibilities, and ensuring its proper maintenance is crucial to prevent breakdowns. Follow these seven steps to keep your vehicle in top condition:

  1. Regular Check-ups: Schedule routine check-ups to identify and address potential issues before they become serious problems.
  2. OBDII Codes Matter: Ignoring On-Board Diagnostics II (OBDII) codes can have dangerous consequences. Learn about the 10 essential resources for OBDII code fixes.
  3. Insurance Claims After an Accident: In case of a car accident, follow these nine steps to file an insurance claim promptly.
  4. Determining Total Loss: Understand the indicators that help you assess if your car is totaled after an accident.
  5. Smart Money Management: Discover 10 effective ways to save money on car repairs, including knowing the expected costs for common services like brake jobs and oil changes.

Unraveling OBDII Code P0455 for Nissan Altima 2009 Sedan

Understanding the Code

In the world of car diagnostics, the OBDII code P0455 for a 2009 Nissan Altima Sedan can be a cause for concern. It specifically points to issues with the Evaporative Emission Control System.

DTC Logic

The Diagnostic Trouble Code (DTC) P0455 is triggered when a substantial leak is detected in the Evaporative (EVAP) system between the fuel tank and the EVAP canister purge volume control solenoid valve.

DTC Confirmation Procedure

Before confirming the DTC, ensure the fuel filler cap is tightly secured and follow the necessary procedures with the CONSULT-III tool.

Diagnosis Procedure

  1. Fuel Filler Cap Design: Confirm that you are using a genuine NISSAN fuel filler cap, as using an incorrect one may trigger the MIL.
  2. Installation Check: Ensure the fuel filler cap is properly tightened by rotating it clockwise.
  3. Functional Check: Listen for the air-releasing sound while opening the fuel filler cap to verify its proper function.
  4. Inspecting Components: Check various components, including the fuel tank vacuum relief valve and EVAP purge line, for any signs of damage or disconnection.
  5. Cleaning EVAP Purge Line: Use an air blower to clean the EVAP purge line, including pipes and rubber tubes.
  6. Checking Control Valve Operation: Verify the proper operation of the EVAP canister purge volume control solenoid valve.
  7. Leak Detection: Investigate the entire EVAP line for any leaks, as they can compromise the system’s efficiency.
  8. Further Checks: Examine additional elements, such as the fuel tank temperature sensor and EVAP control system pressure sensor.
  9. Final Checks: Assess the EVAP/ORVR line, recirculation line, and the refueling EVAP vapor cut valve for any issues.
  10. Replacement if Necessary: If any components are found to be faulty, replace them with genuine parts to ensure optimal performance.

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