Nissan Juke F15. Instruction — part 430

P219A AIR FUEL RATIO

EC-533

< DTC/CIRCUIT DIAGNOSIS >

[MR FOR NISMO RS MODELS]

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• Always drive vehicle at a safe speed.

NOTE:

• Drive the vehicle at approximately 88 km/h (55MPH) allows easy diagnosis.

• Keep the accelerator pedal as possible during crusing.

3. Check “SYSTEM 1 DIAGNOSIS A B1” indication.
Is “CMPLT” displayed?

YES

>> GO TO 5.

NO

>> GO TO 2.

5.

PERFORM DTC CONFIRMATION PROCEDURE-3

Check 1st trip DTC.
Is 1st trip DTC detected?

YES

>> Proceed to

EC-533, "Diagnosis Procedure"

.

NO

>> INSPECTION END

6.

PERFORM DTC CONFIRMATION PROCEDURE-4

Without CONSULT

1. Start the engine and warm it up to normal operating temperature.

2. Drive vehicle under the following conditions for at least 5 consecutive seconds.

CAUTION:

• Always drive vehicle at a safe speed.

NOTE:

• Drive the vehicle at approximately 88 km/h (55MPH) allows easy diagnosis.

• Keep the accelerator pedal as possible during crusing.

3. Check 1st trip DTC.
Is 1st trip DTC detected?

YES

>> Proceed to

EC-533, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000012826858

1.

CHECK FOR INTAKE AIR LEAK

1. Stop engine and check the following for connection.

-

Air duct

-

Vacuum hoses

-

PCV hose

-

Intake air passage between air duct to intake manifold

2. Start engine and let it idle.

3. Listen for an intake air leak after the mass air flow sensor.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

ENG SPEED

1,600 – 2,600rpm

COOLAN TEMP/S

More than 80

°C (176°F)

B/FUEL SCHDL

6 – 14 msec

Selector lever

CVT: D position
M/T: 6th position

SYSTEM 1 DIAGNOSIS B B1

PRSENT

Engine speed

1,600 – 2,600rpm

Calculated load value

24 – 77 %

Selector lever

CVT: D position
M/T: 6th position

EC-534

< DTC/CIRCUIT DIAGNOSIS >

[MR FOR NISMO RS MODELS]

P219A AIR FUEL RATIO

2.

CHECK EXHAUST GAS LEAK

1. Stop engine and visually check exhaust tube, three way catalyst and muffler for dents connection.

2. Start engine and let it idle.

3. Listen for an exhaust gas leak before three way catalyst (manifold).

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK FUEL PRESSURE

1. Release fuel pressure to zero. Refer to

EC-166, "Work Procedure"

.

2. Check fuel pressure. Refer to

EC-166, "Work Procedure"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 8.

4.

CHECK MASS AIR FLOW SENSOR

With CONSULT

Check “MASS AIRFLOW” in “DATA MONITOR” mode of “ENGINE” using CONSULT.

For specification, refer to

EC-591, "Mass Air Flow Sensor"

.

With GST

Check mass air flow sensor signal in Service $01 using GST.

For specification, refer to

EC-591, "Mass Air Flow Sensor"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Check connectors for rusted terminals or loose connections in the mass air flow sensor circuit or

grounds. Refer to

EC-233, "Diagnosis Procedure"

.

5.

CHECK FUNCTION OF FUEL INJECTOR

With CONSULT

1. Start engine.

2. Perform “POWER BALANCE” in “ACTIVE TEST” mode of “ENGINE” using CONSULT.

3. Check that each circuit produces a momentary engine speed drop.

Without CONSULT

1. Let engine idle.

2. Listen to each fuel injector operating sound.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Perform trouble diagnosis for fuel injector, refer to

EC-

541, "Component Function Check"

.

PBIB1216E

Clicking noise should be heard.

PBIB3332E

P219A AIR FUEL RATIO

EC-535

< DTC/CIRCUIT DIAGNOSIS >

[MR FOR NISMO RS MODELS]

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6.

CHECK FUNCTION OF IGNITION COIL-1

CAUTION:

Perform the following steps in a well-ventilated area with no combustibles.

1. Turn ignition switch OFF.

2. Remove fuel pump fuse from IPDM E/R to release fuel pressure.

NOTE:

CONSULT must not be used to release fuel pressure. It develops again during the following steps,

if released by using CONSULT.

3. Start the engine.

4. After an engine stall, crank the engine two or three times to release all the fuel pressure.

5. Turn ignition switch OFF.

6. Disconnect all the harness connectors of ignition coil to prevent electric discharge from occurring in igni-

tion coil.

7. Remove ignition coil assembly and spark plug of cylinder. Refer to

EM-60, "Removal and Installation"

.

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. Allow a 13-17mm (0.52-0.66 in) spacing between spark plug and

grounded metal portion as shown in the figure to fix the ignition

coil with a rope or an equivalent.

11. Crank the engine for approximately 3 seconds to see if sparking

occurs between spark plug and the grounded metal portion.

CAUTION:

• The discharge voltage becomes 20 kV or higher. There-

fore, always stay away from the spark plug and ignition

coil at least 50 cm (19.7 in) during the inspection.

• Leaving a space of more than 17mm (0.66 in) may damage

the ignition coil.

NOTE:

When the gap is less than 13 mm (0.52 in), a the spark might be generated even if the coil is mal-

functioning.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 9.

7.

CHECK COMPRESSION PRESSURE

Check compression pressure. Refer to

EM-17, "Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-45, "Intermittent Incident"

.

NO

>> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.

8.

DETECT MALFUNCTIONING PART

Check fuel hoses and fuel tubes for clogging.
Is the inspection result normal?

YES

>> Replace fuel filter and fuel pump assembly. Refer to

FL-6, "2WD : Exploded View"

(2WD models)

or

FL-10, "AWD : Exploded View"

(AWD models).

NO

>> Repair or replace error-detected parts.

9.

CHECK FUNCTION OF IGNITION COIL-2

1. Turn ignition switch OFF.

2. Disconnect spark plug and connect a non-malfunctioning spark plug.

3. Crank engine for approximately 3 seconds, and recheck whether spark is generated between the spark

plug and the grounded metal portion.

Is the inspection result normal?

Spark should be generated.

JMBIA0066GB

Spark should be generated.

EC-536

< DTC/CIRCUIT DIAGNOSIS >

[MR FOR NISMO RS MODELS]

P219A AIR FUEL RATIO

YES

>> GO TO 10.

NO

>> Check ignition coil, power transistor and their circuits. Refer to

EC-554, "Component Function

Check"

.

10.

CHECK SPARK PLUG

Check the initial spark plug for fouling, etc.
Is the inspection result normal?

YES

>> 1. Repair or clean spark plug. Refer to

EM-60,

"Exploded View"

.

2. GO TO 11.

NO

>> Replace spark plug(s) with standard type one(s). For

spark plug type, refer to

EM-139, "Spark Plug"

.

11.

CHECK FUNCTION OF IGNITION COIL-3

1. Reconnect the initial spark plugs.

2. Crank engine for approximately 3 seconds, and recheck whether spark is generated between the spark

plug and the grounded portion.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-45, "Intermittent Incident"

.

NO

>> Replace spark plug(s) with standard type one(s). For spark plug type, refer to

EM-139, "Spark

Plug"

.

SEF156I

Spark should be generated.