Nissan Versa Sedan. Instruction — part 283
BASIC INSPECTION
EC-131
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2. Check ignition timing with a timing light.
For procedure, refer to
.
For specification, refer to
-
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
.
>> GO TO 12.
12.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform
>> GO TO 13.
13.
PERFORM IDLE AIR VOLUME LEARNING
Perform
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
.
For specification, refer to
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
.
For specification, refer to
-
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.
MBIB1331E
MBIB1331E
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
• Check crankshaft position sensor (POS) and circuit. Refer to
.
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
(WITH INTELLIGENT KEY SYSTEM) or
WHEN REPLACING CONTROL UNIT : Special Repair Requirement"
SYSTEM)..
>> GO TO 4.
19.
INSPECTION END
If ECM is replaced during this BASIC INSPECTION procedure, perform
>> 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
.
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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