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Nissan Versa Note. Manual - part 321

EC-266

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

P0222, P0223 TP SENSOR

Is the inspection result normal?

YES

>> INSPECTION END

>> GO TO 2.

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

Replace electric throttle control actuator. Refer to

EM-28, "Removal and Installation"

>> INSPECTION END

ECM

Condition

Voltage

Connector

Terminal

−

F11

(TP sensor 1 signal)

Accelerator pedal

Fully released

More than 0.36 V

Fully depressed Less than 4.75 V

(TP sensor 2 signal)

Fully released

Less than 4.75 V

Fully depressed More than 0.36 V

P0300, P0301, P0302, P0303, P0304 MISFIRE

EC-267

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

P0300, P0301, P0302, P0303, P0304 MISFIRE

DTC Logic

INFOID:0000000009020770

DTC DETECTION LOGIC

When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the crank-

shaft position (CKP) sensor (POS) signal to vary, ECM can determine that a misfire is occurring.

The misfire detection logic consists of the following two conditions.
1. One Trip Detection Logic (Three Way Catalyst Damage)

On the 1st trip, when a misfire condition occurs that can damage the three way catalyst (TWC) due to

overheating, the MI will blink.

When a misfire condition occurs, the ECM monitors the CKP sensor signal every 200 engine revolutions

for a change.

When the misfire condition decreases to a level that will not damage the TWC, the MI will turn off.

If another misfire condition occurs that can damage the TWC on a second trip, the MI will blink.

When the misfire condition decreases to a level that will not damage the TWC, the MI will remain on.

If another misfire condition occurs that can damage the TWC, the MI will begin to blink again.

2. Two Trip Detection Logic (Exhaust quality deterioration)

For misfire conditions that will not damage the TWC (but will affect vehicle emissions), the MI will only light

when the misfire is detected on a second trip. During this condition, the ECM monitors the CKP sensor

signal every 1,000 engine revolutions.

A misfire malfunction can be detected on any one cylinder or on multiple cylinders.

*: DTC is detected even where a malfunction occurs one side of the dual injector.

DTC CONFIRMATION PROCEDURE

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.

>> GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE-I

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

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

3. Restart engine and let it idle for about 35 minutes.

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

YES

>> Go to

EC-268, "Diagnosis Procedure"

Sensor

Input signal to ECM

ECM function

Crankshaft position sensor (POS)

Engine speed

On board diagnosis of misfire

DTC No.

Trouble diagnosis content

DTC detecting condition

Possible cause

P0300

Multiple cylinder misfire detected

Multiple cylinder misfire.

• Improper spark plug
• Insufficient compression
• Incorrect fuel pressure
• The fuel injector circuit is open or shorted
• Fuel injector

• Intake air leak
• The ignition signal circuit is open or shorted
• Lack of fuel
• Signal plate
• A/F sensor 1
• Incorrect PCV hose connection

P0301

No.1 cylinder misfire detected

No. 1 cylinder misfires.

P0302

No. 2 cylinder misfire detected

No. 2 cylinder misfires.

P0303

No. 3 cylinder misfire detected

No. 3 cylinder misfires.

P0304

No. 4 cylinder misfire detected

No. 4 cylinder misfires.

EC-268

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

P0300, P0301, P0302, P0303, P0304 MISFIRE

>> GO TO 3.

PERFORM DTC CONFIRMATION PROCEDURE-II

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

2. Start engine and drive the vehicle under the similar conditions to (1st trip) Freeze Frame Data for a certain

time. Refer to the table below.

Hold the accelerator pedal as steady as possible.

The similar conditions to (1st trip) Freeze Frame Data means the vehicle operation that the following con-

ditions should be satisfied at the same time.

CAUTION:

Always drive vehicle in safe manner according to traffic conditions and obey all traffic laws when

driving.

The time to driving varies according to the engine speed in the freeze frame data.

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

YES

>> Go to

EC-268, "Diagnosis Procedure"

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009020771

CHECK FOR INTAKE AIR LEAK AND PCV HOSE

1. Start engine and run it at idle speed.

2. Listen for the sound of the intake air leak.

3. Check PCV hose connection.
Is intake air leak detected?

YES

>> Discover air leak location and repair.

>> GO TO 2.

CHECK FOR EXHAUST SYSTEM CLOGGING

Stop engine and visually check exhaust tube, three way catalyst and muffler for dents.
Is the inspection result normal?

YES-1 >> With CONSULT: GO TO 3.

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

>> Repair or replace it.

PERFORM POWER BALANCE TEST

With CONSULT

1. Start engine.

2. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT.

3. Make sure that each circuit produces a momentary engine speed drop.
Is the inspection result normal?

YES

>> GO TO 9.

>> GO TO 4.

Engine speed

Engine speed in the freeze frame data

± 400 rpm

Vehicle speed

Vehicle speed in the freeze frame data

± 10 km/h (6 MPH)

Engine coolant temperature (T) condition

When the freeze frame data shows lower than 70

°C (158°F),

T should be lower than 70

°C (158°F).

When the freeze frame data shows higher than or equal to 70

°C (158°F),

T should be higher than or equal to 70

°C (158°F).

Engine speed

Time

Around 1,000 rpm

Approximately 20 minutes

Around 2,000 rpm

Approximately 10 minutes

More than 3,000 rpm

Approximately 7 minutes

P0300, P0301, P0302, P0303, P0304 MISFIRE

EC-269

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

CHECK FUNCTION OF FUEL INJECTOR

1. Start engine and let engine idle.

2. Listen to each fuel injector operating sound.

Is the inspection result normal?

YES

>> GO TO 5.

>> Perform trouble diagnosis for FUEL INJECTOR. Refer

EC-434, "Component Function Check"

CHECK FUNCTION OF IGNITION COIL-I

CAUTION:

Do the following procedure in the place where ventilation is good without the combustible.

1. Turn ignition switch OFF.

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

NOTE:

Do not use CONSULT to release fuel pressure, or fuel pressure applies again during the following proce-

dure.

3. Start engine.

4. After engine stalls, crank it two or three times to release all fuel pressure.

5. Turn ignition switch OFF.

6. Remove all ignition coil harness connectors to avoid the electrical discharge from the ignition coils.

7. Remove ignition coil and spark plug of the cylinder to be checked.

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 9.

>> GO TO 6.

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?

Clicking noise should be heard.

PBIB3332E

Spark should be generated.

JMBIA0066GB

Spark should be generated.

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