Nissan Almera Tino V10. Manual — part 398
EC-418
[QG (WITH EURO-OBD)]
DTC P1143, P1163 HO2S1 (A/T MODELS)
3.
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 “CLEAR”.
4.
Run engine for at least 10 minutes at idle speed.
Is the 1st trip DTC P0171 or P0174 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 5 seconds at idle speed.
4.
Stop engine and reconnect mass air flow sensor harness con-
nector.
5.
Make sure that DTC P0102 is displayed.
6.
Erase the DTC memory. Refer to
EMISSION-RELATED DIAGNOSTIC INFORMATION"
.
7.
Make sure that DTC P0000 is displayed.
8.
Run engine for at least 10 minutes at idle speed.
Is the 1st trip DTC P0171 or P0174 detected?
Is it difficult to start engine?
Yes or No
Yes
>> Perform trouble diagnosis for DTC P0171, P0174. Refer to
.
No
>> GO TO 4.
4.
CHECK HEATED OXYGEN SENSOR 1 HEATER
Refer to
EC-164, "Component Inspection"
.
OK or NG
OK
>> GO TO 5.
NG
>> Replace malfunctioning heated oxygen sensor 1.
5.
CHECK HEATED OXYGEN SENSOR 1
Refer to
EC-419, "Component Inspection"
.
OK or NG
OK
>> GO TO 6.
NG
>> Replace malfunctioning heated oxygen sensor 1.
6.
CHECK INTERMITTENT INCIDENT
Refer to
EC-138, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
For circuit, refer to
.
>> INSPECTION END
SEF215Z
MBIB0096E
DTC P1143, P1163 HO2S1 (A/T MODELS)
EC-419
[QG (WITH EURO-OBD)]
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Component Inspection
EBS00QQ1
HEATED OXYGEN SENSOR 1
With CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Select “MANU TRIG” and adjust “TRIGGER POINT” to 100% in “DATA MONITOR” mode with CONSULT-
II.
3.
Select “HO2S1 (B1)/(B2)” and “HO2S1 MNTR (B1)/(B2)”.
4.
Hold engine speed at 2,000 rpm under no load during the following steps.
5.
Touch “RECORD” on CONSULT-II screen.
6.
Check the following.
●
“HO2S1 MNTR (B1)/(B2)” in “DATA MONITOR” mode
changes from “RICH” to “LEAN” to “RICH” more than 5 times
in 10 seconds.
5 times (cycles) are counted as shown at right.
●
“HO2S1 (B1)/(B2)” voltage goes above 0.6V at least once.
●
“HO2S1 (B1)/(B2)” voltage goes below 0.3V at least once.
●
“HO2S1 (B1)/(B2)” voltage never exceeds 1.0V.
CAUTION:
●
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.
●
Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread
Cleaner tool J-43897-18 or J-43897-12 and approved anti-seize lubricant.
SEF646Y
SEF647Y
SEF648Y
EC-420
[QG (WITH EURO-OBD)]
DTC P1143, P1163 HO2S1 (A/T MODELS)
Without CONSULT-II
1.
Start engine and warm it up to normal operating temperature.
2.
Set voltmeter probes between ECM terminal 35 [HO2S1 (B1) signal] or 36 [HO2S1 (B2) signal] and
engine ground.
3.
Check the following with engine speed held at 2,000 rpm con-
stant under no load.
●
The voltage fluctuates between 0 to 0.3V and 0.6 to 1.0V
more than 5 times within 10 seconds.
●
The maximum voltage is over 0.6V at least one time.
●
The minimum voltage is below 0.3V at least one time.
●
The voltage never exceeds 1.0V.
1 time: 0 - 0.3V
→
0.6 - 1.0V
→
0 - 0.3V
2 times: 0 - 0.3V
→
0.6 - 1.0V
→
0 - 0.3V
→
0.6 - 1.0V
CAUTION:
●
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.
●
Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread
Cleaner tool J-43897-18 or J-43897-12 and approved anti-seize lubricant.
Removal and Installation
EBS00QQ2
HEATED OXYGEN SENSOR 1
Refer to
EM-21, "EXHAUST MANIFOLD AND CATALYTIC CONVERTER"
.
MBIB0019E
DTC P1144 HO2S1 (M/T MODELS)
EC-421
[QG (WITH EURO-OBD)]
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DTC P1144 HO2S1 (M/T MODELS)
PFP:22690
Component Description
EBS00QQ3
The heated oxygen sensor 1 is placed into the exhaust manifold. It
detects the amount of oxygen in the exhaust gas compared to the
outside air. The heated oxygen sensor 1 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 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
EBS00QQ4
Specification data are reference values.
On Board Diagnosis Logic
EBS00QQ5
To judge the malfunction, the output from the heated oxygen sensor
1 is monitored to determine whether the “rich” output is sufficiently
high and “lean” output is sufficiently low. When both the outputs are
shifting to the rich side, the malfunction will be detected.
SEF463R
SEF288D
MONITOR ITEM
CONDITION
SPECIFICATION
HO2S1 (B1)
●
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 dur-
ing 10 seconds.
SEF299U
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P1144
1144
Heated oxygen sensor 1
rich shift monitoring
The maximum and minimum voltages from the
sensor are beyond the specified voltages.
●
Heated oxygen sensor 1
●
Heated oxygen sensor 1 heater
●
Fuel pressure
●
Injectors
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