Nissan Primera P11. Manual — part 146
ENG SPEED
1,700 - 2,600 rpm
Vehicle speed
64 - 100 km/h (40 - 62 MPH)
B/FUEL SCHDL
3.0 - 5.2 msec
Selector lever
Suitable position
If “TESTING” is not displayed after 5 minutes, retry from
step 2.
7)
Make sure that “OK” is displayed after touching “SELF-DIAG
RESULTS”.
If
“NG”
is
displayed,
refer
to
“Diagnostic
Procedure”, EC-QG-141.
Overall Function Check
NLEC0108
Use this procedure to check the overall function of the heated oxy-
gen sensor 1 (front) circuit. During this check, a 1st trip DTC might
not be confirmed.
Without CONSULT-II
1)
Start engine and warm it up to normal operating temperature.
2)
Set voltmeter probes between ECM terminal 62 (HO2S1 sig-
nal) and engine ground.
3)
Check the following with engine speed held at 2,000 rpm con-
stant under no load.
I
The maximum voltage is over 0.6V at least one time.
I
The minimum voltage is over 0.1V at least one time.
4)
If NG, go to “Diagnostic Procedure”, EC-QG-141.
Diagnostic Procedure
NLEC0109
1
RETIGHTEN HEATED OXYGEN SENSOR 1 (FRONT)
1. Turn ignition switch “OFF”.
2. Loosen and retighten heated oxygen sensor 1 (front).
Tightening torque:
40 - 60 N
⋅
m (4.1 - 6.1 kg-m, 30 - 44 ft-lb)
©
GO TO 2.
SEF011X
DTC P0131 HEATED OXYGEN SENSOR 1 (FRONT)
(LEAN SHIFT MONITORING)
QG16
I
18DE
DTC Confirmation Procedure (Cont’d)
EC-141
2
CLEAR THE SELF-LEARNING DATA
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Select “SELF-LEARNING CONT” in “WORK SUPPORT” mode with CONSULT-II.
3. Clear the self-learning control coefficient by touching “START”.
SEF652Y
4. Run engine for at least 10 minutes at idle speed.
Is the 1st trip DTC P0171 detected? Is it difficult to start engine?
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch “OFF”.
3. Disconnect mass air flow sensor harness connector, and restart and run engine for at least 3 seconds at idle speed.
SEF995W
4. Stop engine and reconnect mass air flow sensor harness connector.
5. Make sure diagnostic trouble code No. 0100 is displayed in Diagnostic Test Mode II.
6. Erase the diagnostic test mode II (Self-diagnostic results) memory. Refer to “How to Erase Emission-related Diagnostic
Information”, EC-QG-44.
7. Make sure diagnostic trouble code No. 0000 is displayed in Diagnostic Test Mode II.
8. Run engine for at least 10 minutes at idle speed.
Is the 1st trip DTC 0171 detected? Is it difficult to start engine?
Yes or No
Yes
©
Perform trouble diagnosis for DTC P0171. Refer to EC-QG-208.
No
©
GO TO 3.
3
CHECK FRONT HEATED OXYGEN SENSOR HEATER
Refer to “Component Inspection”, EC-QG-170.
OK or NG
OK
©
GO TO 4.
NG
©
Replace front heated oxygen sensor.
DTC P0131 HEATED OXYGEN SENSOR 1 (FRONT)
(LEAN SHIFT MONITORING)
QG16
I
18DE
Diagnostic Procedure (Cont’d)
EC-142
4
CHECK HEATED OXYGEN SENSOR 1 (FRONT)
Refer to “Component Inspection”, EC-QG-143.
OK or NG
OK
©
GO TO 5.
NG
©
Replace heated oxygen sensor 1 (front).
5
CHECK INTERMITTENT INCIDENT
Perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-QG-102.
Refer to “Wiring Diagram”, EC-QG-135, for circuit.
©
INSPECTION END
Component Inspection
NLEC0110
HEATED OXYGEN SENSOR 1 (FRONT)
NLEC0110S02
With CONSULT-II
1)
Start engine and warm it up to normal operating temperature.
2)
Select “MANU TRIG” in “DATA MONITOR” mode, and select
“HO2S1 (B1)” and “HO2S1 MNTR (B1)”.
3)
Hold engine speed at 2,000 rpm under no load during the fol-
lowing steps.
4)
Touch “RECORD” on CONSULT-II screen.
5)
Check the following.
I
“HO2S1 MNTR (B1)” in “DATA MONITOR” mode changes from
“RICH” to “LEAN” to “RICH” 5 times in 10 seconds.
5 times (cycles) are counted as shown below:
R = “HO2S1 MNTR (B1)”, “RICH”
L = “HO2S1 MNTR (B1)”, “LEAN”
I
“HO2S1 (B1)” voltage goes above 0.6V at least once.
I
“HO2S1 (B1)” voltage goes below 0.3V at least once.
I
“HO2S1 (B1)” voltage never exceeds 1.0V.
CAUTION:
I
Discard any heated oxygen sensor which has been
dropped from a height of more than 0.5 m (19.7 in) onto a
hard surface such as a concrete floor; use a new one.
I
Before installing new oxygen sensor, clean exhaust sys-
tem threads using Oxygen Sensor Thread Cleaner tool
and approved anti-seize lubricant.
SEF646Y
SEF647Y
DTC P0131 HEATED OXYGEN SENSOR 1 (FRONT)
(LEAN SHIFT MONITORING)
QG16
I
18DE
Diagnostic Procedure (Cont’d)
EC-143
Without CONSULT-II
1)
Start engine and warm it up to normal operating temperature.
2)
Set voltmeter probes between ECM terminal 62 (HO2S1 sig-
nal) and engine ground.
3)
Check the following with engine speed held at 2,000 rpm con-
stant under no load.
I
Malfunction indicator lamp goes on more than five times within
10 seconds in Diagnostic Test Mode II [HEATED OXYGEN
SENSOR 1 MONITOR (FRONT).]
I
The maximum voltage is over 0.6V at least one time.
I
The minimum voltage is below 0.3V at least one time.
I
The voltage never exceeds 1.0V.
CAUTION:
I
Discard any heated oxygen sensor which has been
dropped from a height of more than 0.5 m (19.7 in) onto a
hard surface such as a concrete floor; use a new one.
I
Before installing new oxygen sensor, clean exhaust sys-
tem threads using Oxygen Sensor Thread Cleaner tool
and approved anti-seize lubricant.
SEF648Y
SEF011X
DTC P0131 HEATED OXYGEN SENSOR 1 (FRONT)
(LEAN SHIFT MONITORING)
QG16
I
18DE
Component Inspection (Cont’d)
EC-144
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