Nissan Primera P11. Manual — part 150
7
CHECK HEATED OXYGEN SENSOR 1 HEATER (FRONT)
Refer to “Component Inspection”, EC-QG-170.
OK or NG
OK
©
GO TO 8.
NG
©
Replace heated oxygen sensor 1 (front).
8
CHECK HEATED OXYGEN SENSOR 1 (FRONT)
Refer to “Component Inspection”, EC-QG-158.
OK or NG
OK
©
GO TO 9.
NG
©
Replace heated oxygen sensor 1 (front).
9
CHECK MASS AIR FLOW SENSOR
Refer to “Component Inspection”, EC-QG-115.
OK or NG
OK
©
GO TO 10.
NG
©
Replace mass air flow sensor.
10
CHECK PCV VALVE
Refer to “Positive Crankcase Ventilation”, EC-QG-28.
OK or NG
OK
©
GO TO 11.
NG
©
Repair or replace PCV valve.
11
CHECK INTERMITTENT INCIDENT
Perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-QG-102.
©
INSPECTION END
DTC P0133 HEATED OXYGEN SENSOR 1 (FRONT)
(RESPONSE MONITORING)
QG16
I
18DE
Diagnostic Procedure (Cont’d)
EC-157
Component Inspection
NLEC0127
HEATED OXYGEN SENSOR 1 (FRONT)
NLEC0127S02
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” five 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.
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.
SEF646Y
SEF647Y
SEF648Y
SEF011X
DTC P0133 HEATED OXYGEN SENSOR 1 (FRONT)
(RESPONSE MONITORING)
QG16
I
18DE
Component Inspection
EC-158
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.
DTC P0133 HEATED OXYGEN SENSOR 1 (FRONT)
(RESPONSE MONITORING)
QG16
I
18DE
Component Inspection (Cont’d)
EC-159
Component Description
NLEC0128
The heated oxygen sensor 1 (front) is placed into the exhaust
manifold. It detects the amount of oxygen in the exhaust gas com-
pared to the outside air. The heated oxygen sensor 1 (front) has a
closed-end tube made of ceramic zirconia. The zirconia generates
voltage from approximately 1V in richer conditions to 0V in leaner
conditions. The heated oxygen sensor 1 (front) signal is sent to the
ECM. The ECM adjusts the injection pulse duration to achieve the
ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical
change from 1V to 0V.
CONSULT-II Reference Value in Data Monitor
Mode
NLEC0129
Specification data are reference values.
MONITOR ITEM
CONDITION
SPECIFICATION
HO2S1 (B1)
I
Engine: After warming up
Maintaining engine speed at 2,000
rpm
0 - 0.3V
+,
Approx. 0.6 - 1.0V
HO2S1 MNTR
(B1)
LEAN
+,
RICH
Changes more than 5 times during
10 seconds.
ECM Terminals and Reference Value
NLEC0130
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM’s transistor. Use a ground other than ECM terminals, such as the ground.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
62
R
Heated oxygen sensor
1 (front)
[Engine is running]
I
After warming up to normal operating temperature
and engine speed is 2,000 rpm
0 - Approximately 1.0V
SEF008W
SEF463R
SEF288D
DTC P0134 HEATED OXYGEN SENSOR 1 (FRONT)
(HIGH VOLTAGE)
QG16
I
18DE
Component Description
EC-160
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