Nissan Almera Tino V10. Manual — part 306
EC-50
[QG (WITH EURO-OBD)]
BASIC SERVICE PROCEDURE
PREPARATION
Before performing “Idle Air Volume Learning”, make sure that all of the following conditions are satisfied.
Learning will be cancelled if any of the following conditions are missed for even a moment.
●
Battery voltage: More than 12.9V (At idle)
●
Engine coolant temperature: 70 - 95
°
C (158 - 203
°
F)
●
PNP switch: ON
●
Electric load switch: OFF
(Air conditioner, headlamp, rear window defogger)
On vehicles equipped with daytime light systems, set lighting switch to the 1st position to light
only small lamps.
●
Steering wheel: Neutral (Straight-ahead position)
●
Vehicle speed: Stopped
●
Transmission: Warmed-up
For models with CONSULT-II, drive vehicle until “FLUID TEMP SE” in “DATA MONITOR” mode of “A/T”
system indicates less than 0.9V.
For models without CONSULT-II, drive vehicle for 10 minutes.
OPERATION PROCEDURE
With CONSULT-II
1.
Perform
EC-49, "Accelerator Pedal Released Position Learning"
.
2.
Perform
EC-49, "Throttle Valve Closed Position Learning"
.
3.
Start engine and warm it up to normal operating temperature.
4.
Check that all items listed under the topic “PREPARATION” (previously mentioned) are in good order.
5.
Select “IDLE AIR VOL LEARN” in “WORK SUPPORT” mode.
6.
Touch “START” and wait 20 seconds.
SEF217Z
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BASIC SERVICE PROCEDURE
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7.
Make sure that “CMPLT” is displayed on CONSULT-II screen. If
“CMPLT” is not displayed, “Idle Air Volume Learning” will not be
carried out successfully. In this case, find the cause of the inci-
dent by referring to the “Diagnostic Procedure” below.
8.
Rev up the engine two or three times and make sure that idle
speed and ignition timing are within the specifications.
Without CONSULT-II
NOTE:
●
It is better to count the time accurately with a clock.
●
It is impossible to switch the diagnostic mode when an accelerator pedal position sensor circuit
has a malfunction.
1.
Perform
EC-49, "Accelerator Pedal Released Position Learning"
.
2.
Perform
EC-49, "Throttle Valve Closed Position Learning"
.
3.
Start engine and warm it up to normal operating temperature.
4.
Check that all items listed under the topic “PREPARATION” (previously mentioned) are in good order.
5.
Turn ignition switch “OFF” and wait at least 10 seconds.
6.
Confirm that accelerator pedal is fully released, turn ignition switch “ON” and wait 3 seconds.
7.
Repeat the following procedure quickly five times within 5 seconds.
a.
Fully depress the accelerator pedal.
b.
Fully release the accelerator pedal.
8.
Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the MI stops
blinking and turned ON.
9.
Fully release the accelerator pedal within 3 seconds after the MI turned ON.
10. Start engine and let it idle.
11. Wait 20 seconds.
12. Rev up the engine two or three times and make sure that idle speed and ignition timing are within the
specifications.
13. If idle speed and ignition timing are not within the specification, “Idle Air Volume Learning” will not be car-
ried out successfully. In this case, find the cause of the incident by referring to the “Diagnostic Procedure”
below.
ITEM
SPECIFICATION
Idle speed
M/T: 700
±
50 rpm (in “Neutral” position)
A/T: 800
±
50 rpm (in “P” or “N” position)
Ignition timing
M/T: 8
±
5
°
BTDC (in “Neutral” position)
A/T: 10
±
5
°
BTDC (in “P” or “N” position)
MBIB0238E
ITEM
SPECIFICATION
Idle speed
M/T: 700
±
50 rpm (in “Neutral” position)
A/T: 800
±
50 rpm (in “P” or “N” position)
Ignition timing
M/T: 8
±
5
°
BTDC (in “Neutral” position)
A/T: 10
±
5
°
BTDC (in “P” or “N” position)
PBIB0665E
EC-52
[QG (WITH EURO-OBD)]
BASIC SERVICE PROCEDURE
DIAGNOSTIC PROCEDURE
If idle air volume learning cannot be performed successfully, proceed as follows:
1.
Check that throttle valve is fully closed.
2.
Check PCV valve operation.
3.
Check that downstream of throttle valve is free from air leakage.
4.
When the above three items check out OK, engine component parts and their installation condi-
tion are questionable. Check and eliminate the cause of the incident.
It is useful to perform
EC-134, "TROUBLE DIAGNOSIS - SPECIFICATION VALUE"
.
5.
If any of the following conditions occur after the engine has started, eliminate the cause of the
incident and perform “Idle air volume learning” all over again:
–
Engine stalls.
–
Erroneous idle.
Fuel Pressure Check
EBS00QGO
FUEL PRESSURE RELEASE
Before disconnecting fuel line, release fuel pressure from fuel line to eliminate danger.
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 V10 models do not have fuel return system.
With CONSULT-II
1.
Turn ignition switch “ON”.
2.
Perform “FUEL PRESSURE RELEASE” in “WORK SUPPORT”
mode with CONSULT-II.
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-II
1.
Remove fuel pump fuse located in fuse box.
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.
FUEL PRESSURE CHECK
NOTE:
●
When reconnecting fuel line, always use new clamps.
●
Make sure that clamp screw does not contact adjacent parts.
●
Use a torque driver to tighten clamps.
●
Use Pressure Gauge to check fuel pressure.
1.
Release fuel pressure to zero. Refer to
EC-52, "FUEL PRESSURE RELEASE"
.
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BASIC SERVICE PROCEDURE
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2.
Install the fuel pressure gauge into the fuel line as shown in the
figure.
3.
Turn ignition switch “ON”, and check for fuel leakage.
4.
Start engine and check for fuel leakage.
5.
Read the indication of fuel pressure gauge.
6.
If result is unsatisfactory, go to next step.
7.
Check the following.
●
Fuel hoses and fuel tubes for clogging
●
Fuel filter for clogging
●
Fuel pump
●
Fuel pressure regulator for clogging
If OK, replace fuel pressure regulator.
If NG, repair or replace.
At idling:
Approximately 350 kPa (3.5 bar, 3.57 kg/cm
2
, 51 psi)
MBIB0050E
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