2001 NISSAN PICK-UP engine

8 CHECK CLOSED THROTTLE POSITION SWITCH IDLE POSITION (CHECK THROTTLE POSITION SEN-
SOR IDLE POSITION)
With CONSULT-II
NOTE:
Always check ignition timing and base idle speed before performing the following.
1. Warm up engine to normal operating temperature.
2. Check FI cam. Refer to procedure 3.
3. Stop engine.
4. Turn ignition switch ON.
5. Select ªDATA MONITORº mode with CONSULT-II.
6. Select ªCLSD THL/P SWº from the menu.
7. Read ªCLSD THL/P SWº signal under the following conditions.
+Insert a 0.1 mm (0.004 in) and 0.3 mm (0.012 in) feeler gauge alternately between the throttle adjust screw (TAS) and
throttle drum as shown in the figure and check the signal.
AEC871A
SEF197Y
ªCLSD THL/P SWº signal should remain ªONº while inserting 0.1 mm (0.004 in) feeler gauge.
ªCLSD THL/P SWº signal should remain ªOFFº while inserting 0.3 mm (0.012 in) feeler gauge.
OK or NG
OK©GO TO 12.
NG©GO TO 9.
TROUBLE DIAGNOSIS Ð BASIC
INSPECTION
KA24DE (EURO OBD)
Basic Inspection
EC-3091

9 ADJUSTMENT THROTTLE POSITION SENSOR IDLE POSITION-1
With CONSULT-II
NOTE:
+Never adjust throttle adjust screw (TAS).
+Do not touch throttle drum when checking ªCLSD THL/P SWº signal.
Doing so may cause an incorrect adjustment.
1. Warm engine up to normal operating temperature.
2. Check FI cam. Refer to procedure 3.
3. Stop engine.
4. Loosen throttle position sensor fixing bolts.
5. Turn ignition switch ON.
6. Select ªCLSD THL/P SWº in ªDATA MONITORº mode.
7. Insert a 0.1 mm (0.004 in) feeler gauge between throttle adjust screw and throttle drum as shown in the figure.
AEC871A
8. Open throttle valve and then close.
9. Check ªCLSD THL/P SWº signal.
SEF197Y
ªCLSD THL/P SWº signal should remain ªOFFº when the throttle valve is closed.
If it is impossible to adjust closed throttle position switch, replace throttle position sensor.
OK or NG
OK©GO TO 11.
NG©GO TO 10.
TROUBLE DIAGNOSIS Ð BASIC
INSPECTION
KA24DE (EURO OBD)
Basic Inspection
EC-3092

12 RESET THROTTLE POSITION SENSOR IDLE POSITION MEMORY
With CONSULT-II
NOTE:
Always warm up engine to normal operating temperature. If engine is cool, the throttle position sensor idle posi-
tion memory will not be reset correctly.
1. Start engine.
2. Warm up engine to normal operating temperature.
3. Select ªCLSD THL POSº in ªDATA MONITORº mode manual trigger.
4. Stop engine. (Turn ignition switch OFF.)
5. Turn ignition switch ON and wait at least 5 seconds.
SEF864V
6. Turn ignition switch OFF and wait at least 5 seconds.
7. Repeat steps 5 and 6 until ªCLSD THL POSº in ªDATA MONITORº mode with CONSULT-II changes to ªONº.
SEF715Z
©GO TO 13.
13 CHECK TARGET IDLE SPEED
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Select ªENG SPEEDº in ªDATA MONITORº mode.
3. Check idle speed.
700±50 rpm
OK or NG
OK©INSPECTION END
NG©Adjust idle speed. Refer to ªIdle Speed/Ignition Timing/Idle Mixture Ratio Adjustmentº,
EC-3035. Inspection end after adjust idle speed.
TROUBLE DIAGNOSIS Ð BASIC
INSPECTION
KA24DE (EURO OBD)
Basic Inspection
EC-3094

14 CHECK IGNITION TIMING
Without CONSULT-II
1. Warm up engine to normal operating temperature.
2. Stop engine and disconnect throttle position sensor harness connector.
SEF265S
3. Start engine.
4. Rev engine (2,000 to 3,000 rpm) two or three times under no-load and then run engine at idle speed.
5. Check ignition timing at idle using timing light.
SEF320V
Ignition timing:
15ɱ2É BTDC
OK or NG
OK©GO TO 15.
NG©1. Adjust ignition timing by turning distributor. Refer to ªIdle Speed/Ignition Timing/Idle
Mixture Ratio Adjustmentº, EC-3035.
2. GO TO 15.
15 CHECK BASE IDLE SPEED
Without CONSULT-II
Make sure that engine speed falls to the following speed.
650±50 rpm
OK or NG
OK©GO TO 16.
NG©1. Adjust base idle speed by turning idle speed adjusting screw. Refer to ªIdle Speed/
Ignition Timing/Idle Mixture Ratio Adjustmentº, EC-3035.
2. GO TO 16.
TROUBLE DIAGNOSIS Ð BASIC
INSPECTION
KA24DE (EURO OBD)
Basic Inspection
EC-3095

16 CHECK CLOSED THROTTLE POSITION SWITCH IDLE POSITION (CHECK THROTTLE POSITION SEN-
SOR IDLE POSITION)
Without CONSULT-II
NOTE:
Always check ignition timing and base idle speed before performing the following.
1. Warm up engine to normal operating temperature.
2. Check FI cam. Refer to procedure 5.
3. Stop engine.
4. Disconnect closed throttle position switch harness connector .
5. Connect the tester probe to closed throttle position switch terminals 5 and 6.
6. Check harness continuity under the following conditions.
SEF862V
+Insert the 0.1 mm (0.004 in) and 0.3 mm (0.012 in) feeler gauge alternately between the throttle adjust screw (TAS) and
throttle drum as shown in the figure.
AEC871A
ªContinuity should existº while inserting 0.1 mm (0.004 in) feeler gauge.
ªContinuity should not existº while inserting 0.3 mm (0.012 in) feeler gauge.
OK or NG
OK©GO TO 20.
NG©GO TO 17.
TROUBLE DIAGNOSIS Ð BASIC
INSPECTION
KA24DE (EURO OBD)
Basic Inspection
EC-3096

17 ADJUSTMENT THROTTLE POSITION SENSOR IDLE POSITION-1
Without CONSULT-II
NOTE:
+Never adjust throttle adjust screw (TAS).
+Do not touch throttle drum when checking ªcontinuityº.
Doing so may cause an incorrect adjustment.
1. Warm engine up to normal operating temperature.
2. Check FI cam. Refer to procedure 5.
3. Stop engine.
4. Loosen throttle position sensor fixing bolts.
5. Disconnect closed throttle position sensor harness connector.
6. Insert 0.1 mm (0.004 in) feeler gauge between the throttle adjust screw and throttle drum as shown in the figure.
AEC871A
7. Open throttle valve then close.
8. Check continuity between closed throttle position switch terminals 5 and 6.
SEF862V
The continuity should not exist while closing the throttle position sensor body.
If it is impossible to adjust closed throttle position switch, replace throttle position sensor.
OK or NG
OK©GO TO 19.
NG©GO TO 18.
TROUBLE DIAGNOSIS Ð BASIC
INSPECTION
KA24DE (EURO OBD)
Basic Inspection
EC-3097

18 ADJUSTMENT THROTTLE POSITION SENSOR IDLE POSITION-2
Without CONSULT-II
Turn throttle position sensor body counterclockwise until continuity does not exist.
AEC872A
©GO TO 19.
19 ADJUSTMENT THROTTLE POSITION SENSOR IDLE POSITION-3
Without CONSULT-II
1. Temporarily tighten sensor body fixing bolts as follows.
+Gradually move the sensor body clockwise and stop it when the continuity comes to exist, then tighten sensor
body fixing bolts.
AEC872A
2. Make sure two or three times that the continuity exists when the throttle valve is closed and continuity does not exist
when it is opened.
3. Remove 0.1 mm (0.004 in) feeler gauge then insert 0.3 mm (0.012 in) feeler gauge.
4. Make sure two or three times that continuity does not exist when the throttle valve is closed.
5. Tighten throttle position sensor.
6. Check the continuity again.
Continuity does not exist while closing the throttle valve.
OK or NG
OK©GO TO 20.
NG©GO TO 17.
20 REINSTALLATION
Without CONSULT-II
1. Remove 0.3 mm (0.012 in) feeler gauge.
2. Reconnect throttle position sensor harness connector and closed throttle position switch harness connector.
3. Rev engine (2,000 to 3,000 rpm) two or three times under no-load and then run engine at idle speed.
©GO TO 21.
TROUBLE DIAGNOSIS Ð BASIC
INSPECTION
KA24DE (EURO OBD)
Basic Inspection
EC-3098

21 RESET THROTTLE POSITION SENSOR IDLE POSITION MEMORY
Without CONSULT-II
NOTE:
Always warm up engine to normal operating temperature. If engine is cool, the throttle position sensor idle posi-
tion memory will not be reset correctly.
1. Start engine.
2. Warm up engine to normal operating temperature.
3. Stop engine. (Turn ignition switch ªOFFº.)
4. Turn ignition switch ªONº and wait at least 5 seconds.
SEF864V
5. Turn ignition switch ªOFFº and wait at least 5 seconds.
6. Repeat steps 4 and 5, 20 times.
©GO TO 22.
22 CHECK TARGET IDLE SPEED
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
700±50 rpm
OK or NG
OK©GO TO 23.
NG©1. Adjust target idle speed. Refer to ªIdle Speed/Ignition Timing/Idle Mixture Ratio
Adjustmentº, EC-3035.
2. GO TO 23.
23 ERASE UNNECESSARY DTC
After this inspection, unnecessary DTC No. might be displayed.
Erase the stored memory in ECM.
Refer to ªHOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATIONº, (EC-3060) .
©INSPECTION END
TROUBLE DIAGNOSIS Ð BASIC
INSPECTION
KA24DE (EURO OBD)
Basic Inspection
EC-3099