Nissan Rogue manuals

Nissan Rogue Service Manual: P0441 EVAP control system

Nissan Rogue Service Manual / Engine / Engine Control System / DTC/Circuit diagnosis / P0441 EVAP control system

DTC Description

DTC DETECTION LOGIC

In this evaporative emission (EVAP) control system, purge flow occurs during non-closed throttle conditions.

Purge volume is related to air intake volume. Under normal purge conditions (non-closed throttle), the EVAP canister purge volume control solenoid valve is open to admit purge flow. Purge flow exposes the EVAP control system pressure sensor to intake manifold vacuum.

Under normal conditions (non-closed throttle), sensor output voltage indicates if pressure drop and purge flow are adequate. If not, a malfunction is determined.

DTC detection logic

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition
P0441 EVAP PURG FLOW/MON (Evaporative emission system incorrect purge flow) EVAP control system does not operate properly, EVAP control system has a leak between intake manifold and EVAP control system pressure sen

POSSIBLE CAUSE

FAIL-SAFE

Not applicable

DTC CONFIRMATION PROCEDURE

1.CHECK DTC PRIORITY

If DTC P0441 is displayed with DTC P2122, P2123, P2127, P2128 or P2138, first perform the trouble diagnosis for DTC P2122, P2123, P2127, P2128 or P2138.

Is applicable DTC detected? YES >> Perform diagnosis of applicable. Refer to EC-93, "DTC Index".

NO >> GO TO 2.

2.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

  1.  Turn ignition switch OFF and wait at least 10 seconds.
  2.  Turn ignition switch ON.
  3.  Turn ignition switch OFF and wait at least 10 seconds.

Will CONSULT be used? YES >> GO TO 3.

NO >> GO TO 6.

3.PERFORM DTC CONFIRMATION PROCEDURE-1

WITH CONSULT

TESTING CONDITION: Always perform test at a temperature of 5°C (41°F) or more.

  1.  Start engine and warm it up to normal operating temperature.
  2.  Turn ignition switch OFF and wait at least 10 seconds.
  3.  Turn ignition switch ON.
  4.  Turn ignition switch OFF and wait at least 10 seconds.
  5.  Start engine and let it idle for at least 70 seconds.
  6.  Select “PURG FLOW P0441” of “EVAPORATIVE SYSTEM” in “DTC WORK SUPPORT” mode of “ENGINE” using CONSULT.
  7.  Touch “START”.

Is “COMPLETED” displayed on CONSULT screen? YES >> GO TO 5.

NO >> GO TO 4.

4.PERFORM DTC CONFIRMATION PROCEDURE-2

When the following conditions are met, “TESTING” will be displayed on the CONSULT screen. Maintain the conditions continuously until “TESTING” changes to “COMPLETED”. (It will take at least 35 seconds.)

Selector lever Suitable position
VHCL SPEED SE 32 - 120 km/h (20 - 75 MPH)
ENG SPEED 500 - 3,800 rpm
B/FUEL SCHDL 1.0 - 10.0 msec
COOLAN TEMP/S More than 0°C (32°F)

CAUTION: Always drive vehicle at a safe speed.

NOTE: If “TESTING” does not change for a long time, retry from step 2.

Is “COMPLETED” displayed on CONSULT screen? YES >> GO TO 5.

NO >> Perform DTC CONFIRMATION PROCEDURE again. GO TO 2.

5.PERFORM DTC CONFIRMATION PROCEDURE-3

Touch “SELF-DIAG RESULTS”.

Which is displayed on CONSULT screen? OK >> INSPECTION END

NG >> Proceed to EC-308, "Diagnosis Procedure".

6.PERFORM COMPONENT FUNCTION CHECK

  1.  Lift up drive wheels.
  2.  Start engine (VDC switch OFF) and warm it up to normal operating temperature.
  3.  Turn ignition switch OFF and wait at least 10 seconds.
  4.  Start engine and wait at least 70 seconds.
  5.  Set voltmeter probes to ECM harness connector terminals as per the following.

Perform component function check

  1. Check EVAP control system pressure sensor value at idle speed and note it.
  2.  Establish and maintain the following conditions for at least 1 minute.
Air conditioner switch ON
Headlamp switch ON
Rear window defogger switch ON
Engine speed Approx. 3,000 rpm
Gear position Any position other than P, N or R
  1. Verify that EVAP control system pressure sensor value stays 0.1 V less than the value at idle speed (measured at step 6) for at least 1 second.

Is the inspection result normal? YES >> INSPECTION END

NO >> Proceed to EC-308, "Diagnosis Procedure".

Diagnosis Procedure

1.CHECK DTC PRIORITY

If DTC P0441 is displayed with DTC P2122, P2123, P2127, P2128 or P2138, first perform the trouble diagnosis for DTC P2122, P2123, P2127, P2128 or P2138.

Is applicable DTC detected? YES >> Perform diagnosis of applicable. Refer to EC-93, "DTC Index".

NO >> GO TO 2.

2.CHECK EVAP CANISTER

  1.  Turn ignition switch OFF.
  2.  Check EVAP canister for cracks.

Is the inspection result normal? YES-1 >> With CONSULT: GO TO 3.

YES-2 >> Without CONSULT: GO TO 4.

NO >> Replace EVAP canister. Refer to FL-19, "Removal and Installation".

3.CHECK PURGE FLOW

WITH CONSULT

  1.  Disconnect vacuum hose connected to EVAP canister purge volume control solenoid valve at EVAP service port.
  2.  Start engine and let it idle.
  3.  Select “PURG VOL CONT/V” in “ACTIVE TEST” mode of “ENGINE” using CONSULT.
  4.  Touch “Qd” and “Qu” on CONSULT screen to adjust “PURG VOL CONT/V” opening and check vacuum existence.
PURG VOL CONT/V Vacuum
100% Existed
0% Not existed

Is the inspection result normal? YES >> GO TO 8.

NO >> GO TO 5.

4.CHECK PURGE FLOW

WITHOUT CONSULT

  1.  Start engine and warm it up to normal operating temperature.
  2.  Stop engine.
  3.  Disconnect vacuum hose connected to EVAP canister purge volume control solenoid valve at EVAP service port and install vacuum gauge. For the location of EVAP service port, refer to EC-53, "EVAPORATIVE EMISSION SYSTEM : System Description".
  4.  Start engine and let it idle.

    Never depress accelerator pedal even slightly.

  5.  Check vacuum gauge indication before 60 seconds pass after starting engine.

Vacuum should not exist.

  1. Rev engine up to 2,000 rpm after 100 seconds pass after starting engine.

Vacuum should exist.

Is the inspection result normal? YES >> GO TO 8.

NO >> GO TO 5.

5.CHECK EVAP PURGE LINE

  1.  Turn ignition switch OFF.
  2.  Check EVAP purge line for improper connection or disconnection.

    Refer to EC-53, "EVAPORATIVE EMISSION SYSTEM : System Description".

Is the inspection result normal? YES >> GO TO 6.

NO >> Repair EVAP purge line.

6.CHECK EVAP PURGE HOSE AND PURGE PORT

  1.  Disconnect purge hoses connected to EVAP service port A and EVAP canister purge volume control solenoid valve B.
  2.  Blow air into each hose and EVAP purge port C.

Check EVAP purge hose and purge port

  1. Check that air flows freely.

Is the inspection result normal? YES-1 >> With CONSULT: GO TO 7.

YES-2 >> Without CONSULT: GO TO 8.

NO >> Repair or clean hoses and/or purge port.

Check EVAP purge hose and purge port

7.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

WITH CONSULT

  1.  Start engine.
  2.  Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode of “ENGINE” using CONSULT. Check that engine speed varies according to the valve opening.

    Does engine speed vary according to the valve opening?

YES >> GO TO 9.

NO >> GO TO 8.

8.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

Check the EVAP canister purge volume control solenoid valve. Refer to EC-315, "Component Inspection".

Is the inspection result normal? YES >> GO TO 9.

NO >> Replace EVAP canister purge volume control solenoid valve. Refer to EC-14, "Component Parts Location".

9.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR

  1.  Disconnect EVAP control system pressure sensor harness connector.
  2.  Check that water is not inside connectors.

Is the inspection result normal? YES >> GO TO 10.

NO >> Replace EVAP control system pressure sensor. Refer to FL-22, "Removal and Installation".

10.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR FUNCTION

Refer to EC-331, "DTC Description" for DTC P0452, EC-334, "DTC Description" for DTC P0453.

Is the inspection result normal? YES >> GO TO 11.

NO >> Replace EVAP control system pressure sensor. Refer to FL-22, "Removal and Installation".

11.CHECK RUBBER TUBE FOR CLOGGING

  1.  Disconnect rubber tube connected to EVAP canister vent control valve.
  2.  Check the rubber tube for clogging.

Is the inspection result normal? YES >> GO TO 12.

NO >> Clean the rubber tube using an air blower.

12.CHECK EVAP CANISTER VENT CONTROL VALVE

Check the EVAP canister vent control valve. Refer to EC-321, "Component Inspection".

Is the inspection result normal? YES >> GO TO 13.

NO >> Replace EVAP canister vent control valve. Refer to FL-21, "Removal and Installation".

13.CHECK EVAP PURGE LINE

Inspect EVAP purge line (pipe and rubber tube). Check for evidence of leaks.

Refer to EC-496, "Inspection".

Is the inspection result normal? YES >> GO TO 14.

NO >> Repair or replace malfunctioning part.

14.CLEAN EVAP PURGE LINE

Clean EVAP purge line (pipe and rubber tube) using air blower.

>> GO TO 15.

15.CHECK INTERMITTENT INCIDENT

Perform GI-41, "Intermittent Incident".

>> INSPECTION END

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