Nissan Juke F15. Manual — part 385
P0420 THREE WAY CATALYST FUNCTION
EC-353
< DTC/CIRCUIT DIAGNOSIS >
[MR FOR NISMO RS MODELS]
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8. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
9. Connect spark plug and harness connector to ignition coil.
10. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 -
0.66 in) between the edge of the spark plug and grounded metal
portion as shown in the figure.
11. Crank engine for about 3 seconds, and check whether spark is
generated between the spark plug and the grounded metal por-
tion.
CAUTION:
• Do not approach to the spark plug and the ignition coil
within 50 cm (19.7 in). Be careful not to get an electrical
shock while checking, because the electrical discharge
voltage becomes 20 kV or more.
• It might cause to damage the ignition coil if the gap of more than 17 mm (0.66 in) is taken.
NOTE:
When the gap is less than 13 mm (0.52 in), the spark might be generated even if the coil is mal-
functioning.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> GO TO 7.
7.
CHECK FUNCTION OF IGNITION COIL-II
1. Turn ignition switch OFF.
2. Disconnect spark plug and connect a known-good spark plug.
3. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and
the grounded metal portion.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Check ignition coil, power transistor and their circuits. Refer to
.
8.
CHECK SPARK PLUG
Check the initial spark plug for fouling, etc. Refer to
.
Is the inspection result normal?
YES
>> Replace spark plug(s) with standard type one(s). For
spark plug type, refer to
NO
>> Repair or clean spark plug. Refer to
. Then GO TO 9
9.
CHECK FUNCTION OF IGNITION COIL-III
1. Reconnect the initial spark plugs.
2. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and
the grounded portion.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace spark plug(s) with standard type one(s). For spark plug type, refer to
.
Spark should be generated.
JMBIA0066GB
Spark should be generated.
SEF156I
Spark should be generated.
EC-354
< DTC/CIRCUIT DIAGNOSIS >
[MR FOR NISMO RS MODELS]
P0420 THREE WAY CATALYST FUNCTION
10.
PERFORM DTC CONFIRMATION PROCEDURE
1. Replace three way catalyst (manifold). Refer to
EM-34, "2WD : Removal and Installation"
(2WD models)
EM-37, "AWD : Removal and Installation"
(AWD models).
2. Perform DTC confirmation procedure. Refer to
Is DTC P0420 detected again?
YES
>> Replace fuel injector. Refer to
EM-54, "Removal and Installation"
.
NO
>> INSPECTION END
P0441 EVAP CONTROL SYSTEM
EC-355
< DTC/CIRCUIT DIAGNOSIS >
[MR FOR NISMO RS MODELS]
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P0441 EVAP CONTROL SYSTEM
DTC Logic
INFOID:0000000012197895
DTC DETECTION LOGIC
NOTE:
If DTC P0441 is displayed with other DTC such as P2122, P2123, P2127, P2128 or P2138, first perform
trouble diagnosis for other DTC.
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 con-
trol 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 CONFIRMATION PROCEDURE
1.
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 2.
NO
>> GO TO 5.
JSBIA0416GB
DTC No.
Trouble diagnosis name
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0441
EVAP PURG FLOW/MON
(EVAP control system incor-
rect purge flow)
EVAP control system does not operate
properly, EVAP control system has a leak
between intake manifold and EVAP control
system pressure sensor.
• EVAP canister purge volume control sole-
noid valve stuck closed
• EVAP control system pressure sensor and
the circuit
• Loose, disconnected or improper connection
of rubber tube
• Blocked rubber tube
• Cracked EVAP canister
• EVAP canister purge volume control sole-
noid valve circuit
• Accelerator pedal position sensor
• Blocked purge port
• EVAP canister vent control valve
EC-356
< DTC/CIRCUIT DIAGNOSIS >
[MR FOR NISMO RS MODELS]
P0441 EVAP CONTROL SYSTEM
2.
PERFORM DTC CONFIRMATION PROCEDURE-I
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 4.
NO
>> GO TO 3.
3.
PERFORM DTC CONFIRMATION PROCEDURE-II
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.)
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 4.
NO
>> Perform DTC CONFIRMATION PROCEDURE again. GO TO 2.
4.
PERFORM DTC CONFIRMATION PROCEDURE-III
Touch “SELF-DIAG RESULTS”.
Which is displayed on CONSULT screen?
OK
>> INSPECTION END
NG
>> Proceed to
.
5.
PERFORM COMPONENT FUNCTION CHECK
WITH GST
Perform component function check. Refer to
EC-356, "Component Function Check"
NOTE:
Use component function check to check the overall monitoring function of the EVAP control system purge flow
monitoring. During this check, a 1st trip DTC might not be confirmed.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Proceed to
.
Component Function Check
INFOID:0000000012197896
1.
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.
Selector lever
Suitable position
VHCL SPEED SE
32 - 120 km/h (20 - 75 MPH)
ENG SPEED
500 - 3,300 rpm
B/FUEL SCHDL
1.0 - 6.5 msec
COOLAN TEMP/S
More than 0
°C (32°F)
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