2011 NISSAN TIIDA oxygen sensor

DTC P0420 THREE WAY CATALYST FUNCTIONEC-805
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
DTC P0420 THREE WAY CATALYST FUNCTION
On Board Diagnosis LogicINFOID:0000000006341971
The ECM monitors the switching frequency ratio of air fuel ratio (A/F)
sensor 1 and heated oxygen sensor 2.
A three way catalyst (manifold) with high oxygen storage capacity
will indicate a low switching frequency of heated oxygen sensor 2.
As oxygen storage capacity decreases, the heated oxygen sensor 2
switching frequency will increase.
When the frequency ratio of air fuel ratio (A/F) sensor 1 and heated
oxygen sensor 2 approaches a specified limit value, the three way
catalyst (manifold) malfunction is diagnosed.
DTC Confirmation ProcedureINFOID:0000000006341972
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-III
TESTING CONDITION:
Do not hold engine speed for more
than the specified minutes below.
1. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III.
2. Start engine and warm it up to the normal operating temperature.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
5. Let engine idle for 1 minute.
6. Make sure that “COOLAN TEMP/S” indicates more than 70 °C (158° F).
If not, warm up engine and go to next step when “COOLAN TEMP/S” indication reaches to 70°C (158° F).
7. Open engine hood.
8. Select “DTC & SRT CONFIRMATION” then “SRT WORK SUPPORT” mode with CONSULT-III.
9. Rev engine up to 2,000 to 3,000 rpm and hold it for 3 consecutive minutes then release the accelerator pedal completely.
If “INCMP” of “CATALYST” changed to “CMPLT”, go to step 12.
10. Wait 5 seconds at idle.
11. Rev engine up to 2,000 to 3,000 rpm and maintain it unt il “INCMP” of “CATALYST” changes to “CMPLT” (It
will take approximately 5 minutes).
If not “CMPLT”, stop engine and cool it down to less than 70 °C (158° F) and then retest from step 1.
12. Check 1st trip DTC. If 1st trip DTC is detected, go to EC-806, "
Diagnosis Procedure".
Overall Function CheckINFOID:0000000006341973
Use this procedure to check the overall function of the three way catalyst (manifold). During this check, a 1st
trip DTC might not be confirmed.
SEF484YB
DTC No. Trouble diagnosis name DTC detecting conditionPossible cause
P0420
0420 Catalyst system efficiency
below threshold • Three way catalyst (manifold) does not operate
properly.
• Three way catalyst (manifold) does not have enough oxygen storage capacity. • Three way catalyst (manifold)
• Exhaust tube
• Intake air leaks
• Fuel injector
• Fuel injector leaks
• Spark plug
• Improper ignition timing
Revision: May 2010
2011 Versa

EC-822
< SERVICE INFORMATION >[MR18DE]
DTC P0443 EVAP CANISTER PURGE VO
LUME CONTROL SOLENOID VALVE
DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VA LV E
DescriptionINFOID:0000000006341985
SYSTEM DESCRIPTION
*1: ECM determines the start signal status by the signals of engine speed and battery voltage.
*2: This signal is sent to the ECM though CAN communication line.
This system controls flow rate of fuel vapor from the EVAP canister. The opening of the vapor by-pass pas-
sage in the EVAP canister purge volume control solenoid valve changes to control the flow rate. The EVAP
canister purge volume control solenoid valve repeats ON/O FF operation according to the signal sent from the
ECM. The opening of the valve varies for optimum engi ne control. The optimum value stored in the ECM is
determined by considering various engine conditions. When t he engine is operating, the flow rate of fuel vapor
from the EVAP canister is r egulated as the air flow changes.
COMPONENT DESCRIPTION
The EVAP canister purge volume control solenoid valve uses a ON/
OFF duty to control the flow rate of fuel vapor from the EVAP canis-
ter. The EVAP canister purge volume control solenoid valve is
moved by ON/OFF pulses from the ECM. The longer the ON pulse,
the greater the amount of fuel vapor that will flow through the valve.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000006341986
Specification data are reference values.
Sensor Input Signal to ECMECM
function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE) Engine speed*
1
EVAP can-
ister purge
flow controlEVAP canister purge volume
control solenoid valve
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor
Engine coolant temperature
Battery Battery voltage*
1
Throttle position sensorThrottle position
Accelerator pedal position sensor Accelerator pedal position
Air fuel ratio (A/F) sensor 1 Density of oxygen in exhaust gas
(Mixture ratio
feedback signal)
Fuel tank temperature sensor Fuel temperature in fuel tank
ABS actuator and electric unit (control unit) Vehicle speed*
2
Combination meter
PBIA9215J
Monitor item ConditionSpecification
PURG VOL C/V • Engine: After warming up
• Shift lever: P or N (A/T, CVT),
Neutral (M/T)
• Air conditioner switch: OFF
•No load Idle
(Accelerator pedal is not depressed
even slightly, after engine starting)
0%
2,000 rpm 0 - 50%
Revision: May 2010 2011 Versa

EC-830
< SERVICE INFORMATION >[MR18DE]
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VALVE
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLE-
NOID VALVE
DescriptionINFOID:0000000006341993
SYSTEM DESCRIPTION
*1: ECM determines the start signal status by the signals of engine speed and battery voltage.
*2: This signal is sent to the ECM though CAN communication line.
This system controls flow rate of fuel vapor from the EVAP canister. The opening of the vapor by-pass pas-
sage in the EVAP canister purge volume control solenoid valve changes to control the flow rate. The EVAP
canister purge volume control solenoid valve repeats ON/O FF operation according to the signal sent from the
ECM. The opening of the valve varies for optimum engi ne control. The optimum value stored in the ECM is
determined by considering various engine conditions. When t he engine is operating, the flow rate of fuel vapor
from the EVAP canister is r egulated as the air flow changes.
COMPONENT DESCRIPTION
The EVAP canister purge volume control solenoid valve uses a ON/
OFF duty to control the flow rate of fuel vapor from the EVAP canis-
ter. The EVAP canister purge volume control solenoid valve is
moved by ON/OFF pulses from the ECM. The longer the ON pulse,
the greater the amount of fuel vapor that will flow through the valve.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000006341994
Specification data are reference values.
Sensor Input Signal to ECMECM
function Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE) Engine speed*
1
EVAP can-
ister purge
flow controlEVAP canister purge volume
control solenoid valve
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor
Engine coolant temperature
Battery Battery voltage*
1
Throttle position sensorThrottle position
Accelerator pedal position sensor Accelerator pedal position
Air fuel ratio (A/F) sensor 1 Density of oxygen in exhaust gas
(Mixture ratio
feedback signal)
Fuel tank temperature sensor Fuel temperature in fuel tank
ABS actuator and electric unit (control unit) Vehicle speed*
2
Combination meter
PBIA9215J
Monitor item ConditionSpecification
PURG VOL C/V • Engine: After warming up
• Shift lever: P or N (A/T, CVT),
Neutral (M/T)
• Air conditioner switch: OFF
•No load Idle
(Accelerator pedal is not depressed
even slightly, after engine starting)
0%
2,000 rpm 0 - 50%
Revision: May 2010 2011 Versa

DTC P2A00 A/F SENSOR 1EC-989
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
DTC P2A00 A/F SENSOR 1
Component DescriptionINFOID:0000000006342212
The air fuel ratio (A/F) sensor 1 is a planar one-cell limit current sen-
sor. The sensor element of the A/F sensor 1 is composed an elec-
trode layer, which transports ions. It has a heater in the element.
The sensor is capable of precise m
easurement = 1, but also in the
lean and rich range. Together with its control electronics, the sensor
outputs a clear, continuous signal throughout a wide range.
The exhaust gas components diffuse through the diffusion layer at
the sensor cell. An electrode layer is applied voltage, and this current
relative oxygen density in lean. Also this current relative hydrocar-
bon density in rich.
Therefore, the A/F sensor 1 is able to indicate air fuel ratio by this
electrode layer of current. In addition, a heater is integrated in the
sensor to ensure the required operating temperature of about 800 °C
(1,472 °F).
CONSULT-III Reference Val ue in Data Monitor ModeINFOID:0000000006342213
Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000006342214
To judge the malfunction, the A/F signal computed by ECM from the A/F sensor 1 signal is monitored not to be
shifted to LEAN side or RICH side.
DTC Confirmation ProcedureINFOID:0000000006342215
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.
WITH CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
PBIB3353E
PBIB3354E
Monitor itemConditionSpecification
A/F SEN1 (B1) • Engine: After warming upMaintaining engine speed at
2,000 rpm Fluctuates around 2.2 V
DTC No. Trouble diagnosis name
DTC detecting conditionPossible Cause
P2A00
2A00 Air fuel ratio (A/F) sensor 1
circuit range/performance • The output voltage computed by ECM from the
A/F sensor 1 signal is shifted to the lean side for
a specified period.
• The A/F signal computed by ECM from the A/F
sensor 1 signal is shifted to the rich side for a
specified period. • Air fuel ratio (A/F) sensor 1
• Air fuel ratio (A/F) sensor 1 heater
• Fuel pressure
• Fuel injector
• Intake air leaks
Revision: May 2010
2011 Versa

EC-994
< SERVICE INFORMATION >[MR18DE]
DTC P2A00 A/F SENSOR 1
• Harness for open or short between A/F sensor 1 and fuse
>> Repair or replace harness or connectors.
8.CHECK A/F SENSOR 1 INPUT SIGN AL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between the following terminals. Refer to Wiring Diagram.
4. Check harness continuity between ECM terminals 49, 53 or A/F sensor 1 terminals 1, 2 and ground. Refer to Wiring Diagram.
5. Also check harness for short to power.
OK or NG
OK >> GO TO 9.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
9.CHECK A/F SENSOR 1 HEATER
Refer to EC-652, "
Component Inspection".
OK or NG
OK >> GO TO 10.
NG >> GO TO 11.
10.CHECK INTERMITTENT INCIDENT
Perform EC-632
.
OK or NG
OK >> GO TO 11.
NG >> Repair or replace.
11 .REPLACE AIR FUEL RATIO (A/F) SENSOR 1
Replace air fuel ratio (A/F) sensor 1.
CAUTION:
• Discard any air fuel ratio (A/F) 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 air fuel ratio (A/F) sensor, clean exhaust system threads using Heated Oxygen
Sensor Thread Cleaner tool J-43897-18 or J-43897-12 and approved anti-seize lubricant.
>> GO TO 12.
12.CONFIRM A/F ADJUSTMENT DATA
1. Turn ignition switch ON.
2. Select “A/F ADJ-B1” in “DAT A MONITOR” mode with CONSULT-III.
3. Make sure that “0.000” is displayed on CONSULT-III screen.
OK or NG
OK >> INSPECTION END
NG >> GO TO 13.
13.CLEAR THE SELF-LEARNING DATA
With CONSULT-III
A/F sensor 1 terminal ECM terminal
14 9
25 3
Continuity should exist.
Continuity should not exist.
Revision: May 2010 2011 Versa

EC-1036
< SERVICE INFORMATION >[MR18DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
Air Fuel Ratio (A/F) Sensor 1 Heater
INFOID:0000000006342258
Heated Oxygen sensor 2 HeaterINFOID:0000000006342259
Crankshaft Position Sensor (POS)INFOID:0000000006342260
Refer to EC-798, "Component Inspection".
Camshaft Position Sensor (PHASE)INFOID:0000000006342261
Refer to EC-803, "Component Inspection".
Throttle Control MotorINFOID:0000000006342262
Fuel InjectorINFOID:0000000006342263
Fuel PumpINFOID:0000000006342264
Resistance [at 25 °C (77 °F)] 1.8 - 2.44 Ω
Resistance [at 25°C (77 °F)] 3.4 - 4.4 Ω
Resistance [at 25°C (77 °F)] Approximately 1 - 15 Ω
Resistance [at 10 - 60°C (50 - 140 °F)] 11.4 - 14.5 Ω
Resistance [at 25 °C (77 °F)] Approximately 0.2 - 5.0 Ω
Revision: May 2010 2011 Versa

PREPARATIONEM-7
< PREPARATION > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
PREPARATION
PREPARATION
Special Service ToolsINFOID:0000000005930920
Tool number
(Kent-Moore No.)
Tool name
Description
K V 1 0 1111 0 0
(J-37228)
Seal cutter Removing oil pan (lower and upper) etc.
KV10116200
(J-26336-B)
Valve spring compressor
1. KV10115900
(J-26336-20)
Attachment
2. KV10109220
( — )
Adapter Disassembling and assembling valve mecha-
nism
Part (1) is a component of KV10116200, but
Part (2) is not so.
KV10112100
(BT-8653-A)
Angle wrench Tightening bolts for bearing cap, cylinder
head, etc. in angle
KV10117100
( — )
Heated oxygen sensor wrench Loosening or tightening heated oxygen sen-
sor 1
For 22 mm (0.87 in) width hexagon nut
KV10107902
(J-38959)
Valve oil seal puller
1. KV10116100
( — )
Valve oil seal puller adapter Removing valve oil seal
KV10115600
(J-38958)
Valve oil seal drift Installing valve oil seal
Use side A.
a: 20 mm (0.79 in) dia. d: 8 mm (0.31 in) dia.
b: 13 mm (0.51 in) dia. e: 10.7 mm (0.421 in)
c: 10.3 mm (0.406 in) dia. f: 5 mm (0.20 in)
Unit: mm (in)
S-NT046
PBIC1650E
S-NT014
NT379
SZNT605
S-NT603
Revision: May 2010
2011 Versa

PREPARATIONEM-9
< PREPARATION > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
Tool name
Description
Power tool Loosening bolts and nuts
Spark plug wrench Removing and installing spark plug
Valve seat cutter set Finishing valve seat dimensions
Piston ring expander Removing and installing piston ring
Valve guide drift Removing and installing valve guide
Valve guide reamer (1): Reaming valve guide inner hole (2): Reaming hole for oversize valve guide
(J-43897-18)
(J-43897-12)
Oxygen sensor thread cleaner Reconditioning the exhaust system threads
before installing a new heated oxygen sensor
(Use with anti-seize lubricant shown below.)
a = 18 mm (0.71 in) dia.
for zirconia heated
oxygen sensor
b = 12 mm (0.47 in) dia. for titania heated
oxygen sensor
PBIC0190E
PBIC3874E
S-NT048
S-NT030
PBIC4012E
PBIC4013E
AEM488
Revision: May 2010 2011 Versa