Nissan Primera P11. Manual — part 222
9
ADJUST THROTTLE POSITION SENSOR IDLE POSITION
Without CONSULT-II
1. Loosen throttle position sensor fixing bolts.
2. Turn throttle position sensor body clockwise or counterclockwise until the voltage between ECM terminal 92 and ground becomes
0.35 to 0.65 V.
SEF964W
3. Tighten the throttle position sensor fixing bolts.
©
GO TO 10.
10
RESET THROTTLE POSITION SENSOR IDLE POSITION MEMORY
Without CONSULT-II
NOTE:
Always warm up engine to normal operating temperature. If engine is cold, the throttle position sensor idle position memory will
not reset correctly.
1. Start engine and warm it up to normal operating temperature.
2. Stop engine. (Turn ignition switch “OFF”.)
3. Turn ignition switch “ON” and wait at least 5 seconds.
SEF864V
4. Turn ignition switch “OFF” and wait at least 9 seconds.
5. Repeat steps 4 and 6, 20 times.
©
GO TO 11.
11
CHECK (1ST TRIP) DTC
1. Start engine and warm it up to normal operating temperature.
2. Rev (2,000 to 3,000 rpm) two or three times.
3. Make sure no (1st trip) DTC is displayed with CONSULT-II, GST or Diagnostic Test Mode II (Self-diagnostic Result).
OK or NG
OK
©
GO TO 13.
NG
©
GO TO 12.
TROUBLE DIAGNOSIS — BASIC INSPECTION
SR20DE
Basic Inspection (Cont’d)
EC-87
12
REPAIR MALFUNCTION
Repair or replace components as necessary according to corresponding “Diagnostic Procedure”.
©
GO TO 11.
13
CHECK TARGET IDLE SPEED
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Select “ENG SPEED” in “DATA MONITOR” mode with CONSULT-II.
3. Check idle speed.
750±50 rpm
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
750±50 rpm
OK or NG
OK
©
GO TO 22.
NG
©
GO TO 14.
14
PERFORM IDLE AIR VOLUME LEARNING
Refer to “Idle Air Volume Learning”, EC-SR-46
Which is the result CMPLT or INCMP?
CMPLT or INCMP
CMPLT
©
GO TO 15.
INCMP
©
1. Follow the instruction of “Idle Air Volume Learning”.
2. GO TO 14.
15
CHECK TARGET IDLE SPEED AGAIN
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Select “ENG SPEED” in “DATA MONITOR” mode with CONSULT-II.
3. Check idle speed.
750±50 rpm
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
750±50 rpm
OK or NG
OK
©
GO TO 20.
NG
©
GO TO 16.
16
REPLACE IACV-AAC VALVE
Replace IACV-AAC valve.
©
GO TO 17.
17
PERFORM IDLE AIR VOLUME LEARNING
Refer to “Idle Air Volume Learning”, EC-SR-46
Which is the result CMPLT or INCMP?
CMPLT or INCMP
CMPLT
©
GO TO 18.
INCMP
©
1. Follow the instruction of “Idle Air Volume Learning”.
2. GO TO 14.
TROUBLE DIAGNOSIS — BASIC INSPECTION
SR20DE
Basic Inspection (Cont’d)
EC-88
18
CHECK TARGET IDLE SPEED AGAIN
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Select “ENG SPEED” in “DATA MONITOR” mode with CONSULT-II.
3. Check idle speed.
750±50 rpm
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
750±50 rpm
OK or NG
OK
©
GO TO 20.
NG
©
GO TO 19.
19
CHECK ECM FUNCTION
1. Substitute another known-good ECM to check ECM function. (ECM may be the cause of a problem, but this is rarely the case.)
2. Perform initialization of NATS system and registration of NATS ignition key IDs. Refer to “NATS (Nissan Anti-Theft System)”, EC-SR-
©
GO TO 14.
20
CHECK IGNITION TIMING
1. Start engine and warm it up to normal operating temperature.
2. Check ignition timing at idle using a timing light.
SEF984U
Ignition timing:
15°±2° BTDC
OK or NG
OK
©
GO TO 28.
NG
©
GO TO 21.
21
CHECK TIMING CHAIN INSTALLATION
Check timing chain installation. Refer to EM-section.
OK or NG
OK
©
GO TO 19.
NG
©
1. Repair the timing chain installation.
2. GO TO 14.
Timing light
TROUBLE DIAGNOSIS — BASIC INSPECTION
SR20DE
Basic Inspection (Cont’d)
EC-89
22
CHECK IGNITION TIMING
1. Start engine and let it idle.
2. Check ignition timing at idle using a timing light.
SEF984U
Ignition timing:
15°±2° BTDC
OK or NG
OK
©
GO TO 28.
NG
©
GO TO 23.
23
PERFORM IDLE AIR VOLUME LEARNING
Refer to “Idle Air Volume Learning”, EC-SR-46
Which is the result CMPLT or INCMP?
CMPLT or INCMP
CMPLT
©
GO TO 24.
INCMP
©
GO TO 23.
24
CHECK TARGET IDLE SPEED AGAIN
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Select “ENG SPEED” in “DATA MONITOR” mode with CONSULT-II.
3. Check idle speed.
750±50 rpm
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Check idle speed.
750±50 rpm
OK or NG
OK
©
GO TO 26.
NG
©
GO TO 15.
25
CHECK ECM FUNCTION
1. Substitute another known-good ECM to check ECM function.
(ECM may be the cause of a problem, but this is rarely the case.)
2. Perform initialization of NATS system and registration of NATS ignition key IDs. Refer to “NATS (Nissan Anti-Theft System)”,
©
GO TO 23.
26
CHECK IGNITION TIMING AGAIN
Check ignition timing again. Refer to Test No. 22.
OK or NG
OK
©
GO TO 28.
NG
©
GO TO 27.
Timing light
TROUBLE DIAGNOSIS — BASIC INSPECTION
SR20DE
Basic Inspection (Cont’d)
EC-90
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