AutoCodesNissan – P0442 Nissan

P0442 Nissan Code - EVAP Control System Leak Detected Small Leak

Quick Answer

The Engine Control Module (ECM) tests the Evaporative Emission (EVAP) system for the following conditions: - Large and small leaks - Excess vacuum - Purge flow during non-commanded conditions - Fuel Level and Fuel Pressure sensor faults - EVAP Purge and Vent Valve faults The ECM monitors the Fuel Tank Pressure sensor in order to determine the level of vacuum/pressure in the EVAP system. Common causes include Missing or loose fuel cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P0442 Nissan indicates EVAP Control System Leak Detected Small Leak.
Common causes
Common causes include Missing or loose fuel cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
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Code Popularity 127,577
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Jul 23, 2023
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Code P0442 Nissan Description

The Engine Control Module (ECM) tests the Evaporative Emission (EVAP) system for the following conditions:
- Large and small leaks
- Excess vacuum
- Purge flow during non-commanded conditions
- Fuel Level and Fuel Pressure sensor faults
- EVAP Purge and Vent Valve faults
The ECM monitors the Fuel Tank Pressure sensor in order to determine the level of vacuum/pressure in the EVAP system. The ECM commands both the EVAP Purge Solenoid and the EVAP Vent Valve ON when the conditions are met in order to apply an engine vacuum to the EVAP system. The ECM commands the EVAP Purge Solenoid OFF once the system has reached a predetermined level of vacuum. This test verifies if a vacuum can be achieved in the EVAP system. Failure to develop a vacuum may be caused by a large leak or a restriction.
OBDII Code P0442 Nissan - EVAP Control System Leak Detected Small Leak - AutoCodes.com
P0442 Nissan Code - EVAP Control System Leak Detected Small Leak

What are the Possible Causes of the DTC P0442 Nissan?

  • Missing or loose fuel cap
  • Incorrect fuel filler cap used
  • Fuel filler cap remains open or fails to close
  • Foreign matter caught in fuel filler cap
  • EVAP canister or fuel tank leaks
  • EVAP system hose leaking
  • Fuel tank leaking

How to Fix the DTC P0442 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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0442 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

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0442 Nissan Code

No Frequently Asked Questions about P0442 Nissan Code found.

Discuss the causes and fixes for P0442 Nissan OBDII Code

  • Where is the error code P0442 EVAP control system located on a 2010 Nissan Versa 1.8 motor the EVAP the Vent Control Valve and the Canaster Purge Valve? Is this an easy fix? Thank you!

  • The P0442 means that there is a small leak, it doesn't necessary means that a component has failed. The first thing you should do is check the gas cap. Make sure the gas cap is not damage and is firmly secure, then clear the code. If the code comes back, then you have to have a shop inspect the vehicle for you.

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