Nissan Versa Sedan. Instruction - part 283

BASIC INSPECTION

EC-131

< BASIC INSPECTION >

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2. Check ignition timing with a timing light.

For procedure, refer to 

EC-458, "Inspection"

.

For specification, refer to 

EC-464, "Ignition Timing"

.

-

Timing indicator (1)

Is the inspection result normal?

YES

>> GO TO 19.

NO

>> GO TO 11.

11.

PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING

1. Stop engine.

2. Perform 

EC-124, "Work Procedure"

.

>> GO TO 12.

12.

PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

Perform 

EC-125, "Work Procedure"

.

>> GO TO 13.

13.

PERFORM IDLE AIR VOLUME LEARNING

Perform 

EC-126, "Work Procedure"

.

Is idle air volume learning carried out successfully?

YES

>> GO TO 14.

NO

>> Follow the instruction of IDLE AIR VOLUME LEARNING. Then GO TO 4.

14.

CHECK TARGET IDLE SPEED AGAIN

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

2. Check idle speed.

For procedure, refer to 

EC-457, "Inspection"

.

For specification, refer to 

EC-464, "Idle Speed"

.

Is the inspection result normal?

YES

>> GO TO 15.

NO

>> GO TO 17.

15.

CHECK IGNITION TIMING AGAIN

1. Run engine at idle.

2. Check ignition timing with a timing light.

For procedure, refer to 

EC-458, "Inspection"

.

For specification, refer to 

EC-464, "Ignition Timing"

.

-

Timing indicator (1)

Is the inspection result normal?

YES

>> GO TO 19.

NO

>> GO TO 16.

16.

CHECK TIMING CHAIN INSTALLATION

Check timing chain installation. Refer to 

EM-47, "Removal and Installation"

.

Is the inspection result normal?

YES

>> GO TO 17.

NO

>> Repair the timing chain installation. Then GO TO 4.

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EC-132

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BASIC INSPECTION

17.

DETECT MALFUNCTIONING PART

Check the following.

• Check intake camshaft position sensor (PHASE) and circuit. Refer to 

EC-276, "DTC Logic"

.

• Check crankshaft position sensor (POS) and circuit. Refer to 

EC-272, "DTC Logic"

.

Is the inspection result normal?

YES

>> GO TO 18.

NO

>> Repair or replace. Then GO TO 4.

18.

CHECK ECM FUNCTION 

1. Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but

this is a rare case.)

2. Perform initialization of NATS system and registration of all NATS ignition key IDs. Refer to 

SEC-50,

"ECM : Work Procedure"

 (WITH INTELLIGENT KEY SYSTEM) or 

SEC-129, "ADDITIONAL SERVICE

WHEN REPLACING CONTROL UNIT : Special Repair Requirement"

 (WITHOUT INTELLIGENT KEY

SYSTEM)..

>> GO TO 4.

19.

INSPECTION END

If ECM is replaced during this BASIC INSPECTION procedure, perform 

EC-122, "Work Procedure"

.

>> INSPECTION END

FUEL PRESSURE CHECK

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FUEL PRESSURE CHECK

Work Procedure

INFOID:0000000009267042

FUEL PRESSURE RELEASE

1.

FUEL PRESSURE RELEASE

With CONSULT

1. Turn ignition switch ON.

2. Perform “FUEL PRESSURE RELEASE” in “WORK SUPPORT” mode with CONSULT.

3. Start engine.

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

5. Turn ignition switch OFF.

Without CONSULT

1. Remove fuel pump fuse located in IPDM E/R.

2. Start engine.

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

4. Turn ignition switch OFF.

5. Reinstall fuel pump fuse after servicing fuel system.

>> INSPECTION END

FUEL PRESSURE CHECK

1.

FUEL PRESSURE CHECK

CAUTION:

• Before disconnecting fuel line, release fuel pressure from fuel line to eliminate danger.

• The fuel hose connection method used when taking fuel pressure check must not be used for other

purposes.

• Be careful not to scratch or put debris around connection area when servicing, so that the quick

connector maintains seal ability with O-rings inside.

• Do not perform fuel pressure check with electrical systems operating (i.e. lights, rear defogger, A/C,

etc.) Fuel pressure gauge may indicate false readings due to varying engine load and changes in

manifold vacuum.

NOTE:

Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel pres-

sure cannot be completely released because N17 models do not have fuel return system.

1. Release fuel pressure to zero.

2. Prepare fuel hose for fuel pressure check (B) and fuel tube

adapter [SST: KV10118400 or KV10120000] (D), then connect

fuel pressure gauge (A).

CAUTION:

• Use suitable fuel hose for fuel pressure check (genuine

NISSAN fuel hose without quick connector).

• To avoid unnecessary force or tension to hose, use mod-

erately long fuel hose for fuel pressure check.

• Do not use the fuel hose for checking fuel pressure with damage or cracks on it.

• Use Pressure Gauge to check fuel pressure.

3. Remove fuel hose.

CAUTION:

Do not twist or kink fuel hose because it is plastic hose.

To quick connector
To fuel tube (engine side)

C

: Hose clamp

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FUEL PRESSURE CHECK

4. Connect fuel hose for fuel pressure check (1) to fuel tube

(engine side) with clamp (2) as shown in the figure.

CAUTION:

• Wipe off oil or dirt from hose insertion part using cloth

moistened with gasoline.

• Apply proper amount of gasoline between top of the fuel

tube (3) and No.1 spool (4).

• Insert fuel hose for fuel pressure check until it touches

the No.1 spool on fuel tube.

• Use NISSAN genuine hose clamp (part number: 16439

N4710 or 16439 40U00).

• When reconnecting fuel line, always use new clamps.

• Use a torque driver to tighten clamps.

• Install hose clamp to the position within 1 - 2 mm (0.04 - 0.08 in).

• Make sure that clamp screw does not contact adjacent parts.

5. Connect fuel tube adapter to quick connector (1).

6. After connecting fuel hose for fuel pressure check, pull the hose

with a force of approximately 98 N (10 kg, 22 lb) to confirm fuel

tube does not come off.

7. Turn ignition switch ON and check for fuel leakage.

8. Start engine and check for fuel leakage.

9. Read the indication of fuel pressure gauge.

CAUTION:

• Do not perform fuel pressure check with system operat-

ing. Fuel pressure gauge may indicate false readings.

• During fuel pressure check, confirm for fuel leakage from fuel connection every 3 minutes.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

CHECK FUEL HOSE AND FUEL TUBE

If result is unsatisfactory, check fuel hoses and fuel tubes for clogging.
Is the inspection result normal?

YES

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

FL-5, "Exploded View"

.

NO

>> Repair or replace.

5 : No.2 spool

Tightening torque : 1 - 1.5 N·m (0.1 - 0.15 kg-m, 9 - 13 in-lb)

A : Fuel pressure gauge

At idling

: Approximately 350 kPa (3.57 kg/cm

2

, 51 psi)

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