2007 NISSAN TIIDA Service Repair Manual

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Page 1529 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-180
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
P0171 FUEL INJECTION SYSTEM FUNCTION
2. Start engine and drive the vehicle under the similar conditions to (1st trip) Freeze Frame Data for 10 mi

Page 1530 of 5883

NISSAN TIIDA 2007 Service Repair Manual P0171 FUEL INJECTION SYSTEM FUNCTION
EC-181
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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6. Also check harness for short to power.
Is the inspection result normal?
Y

Page 1531 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-182
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
P0171 FUEL INJECTION SYSTEM FUNCTION
1. Turn ignition switch OFF.
2. Confirm that the engine is cooled down and there are no fire hazards near th

Page 1532 of 5883

NISSAN TIIDA 2007 Service Repair Manual P0172 FUEL INJECTION SYSTEM FUNCTION
EC-183
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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P0172 FUEL INJECTION SYSTEM FUNCTION
DTC LogicINFOID:0000000001670947
DTC DE

P0172 FUEL INJECTION SYSTEM FUNCTION
EC-183
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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P0172 FUEL INJECTION SYSTEM FUNCTION
DTC LogicINFOID:0000000001670947
DTC DETECTION LOGIC
With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the
theoretical mixture ratio based on the mixture ratio feedback signal from the heated oxygen sensors 1. The
ECM calculates the necessary compensation to correct the offset between the actual and the theoretical
ratios.
In case the amount of the compensation value is extremely large (The actual mixture ratio is too rich.), the
ECM judges the condition as the fuel injection system malfunction and lights up the MI (2 trip detection logic).
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE-I
1. Clear the mixture ratio self-learning value. Refer to EC-29, "
MIXTURE RATIO SELF-LEARNING VALUE
CLEAR : Special Repair Requirement".
2. Start engine.
Is it difficult to start engine?
YES >> GO TO 3.
NO >> GO TO 4.
3.RESTART ENGINE
If it is difficult to start engine, the fuel injection system has a malfunction, too.
Crank engine while depressing accelerator pedal.
Does engine start?
YES >> Go to EC-184, "Diagnosis Procedure".
NO >> Remove spark plugs and check for fouling, etc.
4.PERFORM DTC CONFIRMATION PROCEDURE-II
1. Start engine and let it idle for at least 10 minutes.
Is 1st trip DTC detected?
YES >> Go to EC-184, "Diagnosis Procedure".
NO >> GO TO 5.
5.PERFORM DTC CONFIRMATION PROCEDURE-III
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Start engine and drive the vehicle under the similar conditions to (1st trip) Freeze Frame Data for 10 min-
utes. Refer to the table below.
Hold the accelerator pedal as steady as possible.
Sensor Input signal to ECM ECM function Actuator
Heated oxygen sensor 1Density of oxygen in exhaust gas
(Mixture ratio feedback signal)Fuel injection control Fuel injector
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0172Fuel injection system too
rich Fuel injection system does not operate properly.
The amount of mixture ratio compensation is too
large. (The mixture ratio is too rich.) Heated oxygen sensor 1
Fuel injector
Exhaust gas leaks
Incorrect fuel pressure
Mass air flow sensor

Page 1533 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-184
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
P0172 FUEL INJECTION SYSTEM FUNCTION
The similar conditions to (1st trip) Freeze Frame Data means the vehicle operation that the following con-
d

Page 1534 of 5883

NISSAN TIIDA 2007 Service Repair Manual P0172 FUEL INJECTION SYSTEM FUNCTION
EC-185
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6. Also check harness for short to power.
Is the inspection result normal?
Y

P0172 FUEL INJECTION SYSTEM FUNCTION
EC-185
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6. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK FUEL PRESSURE
Check fuel pressure. Refer to EC-377, "
Inspection".
Is the inspection result normal?
YES >> GO TO 6.
NO >> GO TO 5.
5. DETECT MALFUNCTIONING PART
Check fuel hoses and fuel tubes for clogging.
Is the inspection result normal?
YES >> Replace “fuel filter and fuel pump assembly”.
NO >> Repair or replace
6.CHECK MASS AIR FLOW SENSOR
With CONSULT-III
1. Install all removed parts.
2. Check “MASS AIR FLOW” in “DATA MONITOR” mode with CONSULT-III.
For specification, refer to EC-380, "
Mass Air Flow Sensor".
With GST
1. Install all removed parts.
2. Check mass air flow sensor signal in “Service $01” with GST.
For specification, refer to EC-380, "
Mass Air Flow Sensor".
Is the measurement value within the specification?
YES >> GO TO 7.
NO >> Check connectors for rusted terminals or loose connections in the mass air flow sensor circuit or
grounds. Refer to EC-134, "
DTC Logic".
7.CHECK FUNCTION OF FUEL INJECTOR
With CONSULT-III
1. Start engine.
2. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT-III.
3. Make sure that each circuit produces a momentary engine speed drop.
Without CONSULT-III
1. Let engine idle.
2. Listen to each fuel injector operating sound.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Perform trouble diagnosis for FUEL INJECTOR, refer to
EC-313, "
Component Function Check".
8.CHECK FUELINJECTOR
1. Remove fuel injector assembly. Refer to EM-35, "
Removal and Installation".
Keep fuel hose and all fuel injectors connected to fuel tube.
2. Confirm that the engine is cooled down and there are no fire hazards near the vehicle.
3. Disconnect all fuel injector harness connectors.
4. Disconnect all ignition coil harness connectors.
5. Prepare pans or saucers under each fuel injectors.
Clicking noise should be heard.
PBIB3332E

Page 1535 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-186
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
P0172 FUEL INJECTION SYSTEM FUNCTION
6. Crank engine for about 3 seconds.
Make sure fuel does not drip from fuel injector.
Is the inspection resu

Page 1536 of 5883

NISSAN TIIDA 2007 Service Repair Manual P0222, P0223 TP SENSOR
EC-187
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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P0222, P0223 TP SENSOR
DescriptionINFOID:0000000001670949
Electric throttle control actuat

P0222, P0223 TP SENSOR
EC-187
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P0222, P0223 TP SENSOR
DescriptionINFOID:0000000001670949
Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has two sensors. These sensors are a
kind of potentiometers which transform the throttle valve position into
output voltage, and emit the voltage signal to the ECM. In addition,
these sensors detect the opening and closing speed of the throttle
valve and feed the voltage signals to the ECM. The ECM judges the
current opening angle of the throttle valve from these signals and the
ECM controls the throttle control motor to make the throttle valve
opening angle properly in response to driving condition.
DTC LogicINFOID:0000000001670950
DTC DETECTION LOGIC
NOTE:
If DTC P0222 or P0223 is displayed with DTC P1229, first perform the trouble diagnosis for DTC P1229.
Refer to EC-265, "
DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
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 10V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for 1 second.
2. Check DTC.
Is DTC detected?
YES >> Go to EC-187, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001670951
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E15. Refer to Ground Inspection in GI-58, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK THROTTLE POSITION SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect electric throttle control actuator harness connector.
2. Turn ignition switch ON.
PBIB0145E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0222Throttle position sensor
1 circuit low inputAn excessively low voltage from the TP sensor
1 is sent to ECM. Harness or connectors
(TP sensor 1 circuit is open or shorted.)
Electric throttle control actuator
(TP sensor 1) P0223Throttle position sensor
1 circuit high inputAn excessively high voltage from the TP sensor
1 is sent to ECM.

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