Engine-Codes - Nissan - P1441 NISSAN

P1441 NISSAN - Evaporative Emission Control System Very Small Leak

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P1441 NISSAN Possible Causes

  • 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 is the P1441 NISSAN code repair?

Start by checking 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.

Tech Notes

The fuel tank filler cap and the Purge Volume Control Valve are the more common problems that will trigger the P1441 code on Nissan vehicles.

What is the cost to diagnose the P1441 NISSAN code

Labor: 1.0

The cost to diagnose the P1441 NISSAN code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

When is the code detected?

Malfunction is detected when EVAP control system has a very small leak, EVAP control system does not operate properly.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Possible a noticeable fuel odor caused by the release of fuel vapors

P1441 NISSAN Meaning

This diagnosis detects leaks in the Evaporative Emission (EVAP) purge line using engine intake manifold vacuum. If pressure does not increase, the Engine Control Module (ECM) will check for leaks in the line between the fuel tank and EVAP canister purge volume control solenoid valve under the following vacuum test condition.
The vacuum cut valve bypass valve is opened to clear the line between the fuel tank and the EVAP canister purge volume control solenoid valve. The EVAP canister vent control valve will then be closed to shut the EVAP purge line off. The EVAP canister purge volume control solenoid valve is opened to depressurize the EVAP purge line using intake manifold vacuum. After this depressurization is implemented, the EVAP canister purge volume control solenoid valve will be closed.

More Information

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