2007 NISSAN TIIDA spark plugs

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

P0300, P0301, P0302, P0303, P0304 MISFIRE
EC-193
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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7.CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
Is the inspection result normal?
YES >> Replace spark plug(s) with standard type one(s). For
spark plug type, refer to EM-47, "
Removal and Installa-
tion".
NO >> Repair or clean spark plug. Then GO TO 8.
8.CHECK FUNCTION OF IGNITION COIL-III
1. Reconnect the initial spark plugs.
2. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and
the grounded portion.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-47, "
Removal
and Installation".
9.CHECK COMPRESSION PRESSURE
Check compression pressure. Refer to EM-24, "
Inspection".
Is the inspection result normal?
YES >> GO TO 10.
NO >> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.
10.CHECK FUEL PRESSURE
Check fuel pressure. Refer to EC-377, "
Inspection".
Is the inspection result normal?
YES >> GO TO 12.
NO >> GO TO 11.
11 .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.
12.CHECK IGNITION TIMING
For procedure, refer to EC-26, "
IGNITION TIMING : Special Repair Requirement".
For specification, refer to EC-380, "
Idle Speed" and EC-380, "Ignition Timing".
Is the inspection result normal?
YES >> GO TO 13.
NO >> Follow the EC-26, "
IGNITION TIMING : Special Repair Requirement".
13.CHECK HEATED OXYGEN SENSOR 1 HEATER
Refer to EC-164, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 14.
NO >> Replace heated oxygen sensor 1.
14.CHECK MASS AIR FLOW SENSOR
SEF156I
Spark should be generated.

P0420 THREE WAY CATALYST FUNCTION
EC-209
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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NO >> Check ignition coil, power transistor and their circuits. Refer to EC-319, "Diagnosis Procedure".
8.CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
Is the inspection result normal?
YES >> Replace spark plug(s) with standard type one(s). For
spark plug type, refer to EM-47, "
Removal and Installa-
tion".
NO >> Repair or clean spark plug. Then GO TO 9.
9.CHECK FUNCTION OF IGNITION COIL-III
1. Reconnect the initial spark plugs.
2. Crank engine for about three seconds, and recheck whether spark is generated between the spark plug
and the grounded portion.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-47, "
Removal
and Installation".
10.CHECK FUEL INJECTOR
1. Turn ignition switch OFF.
2. Remove fuel injector assembly.
Refer to EM-35, "
Removal and Installation".
Keep fuel hose and all fuel injectors connected to fuel tube.
3. Disconnect all ignition coil harness connectors.
4. Reconnect all fuel injector harness connectors disconnected.
5. Turn ignition switch ON.
Does fuel drip from fuel injector?
YES >> GO TO 11.
NO >> Replace the fuel injector(s) from which fuel is dripping.
11 .CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
Is the trouble fixed?
YES >> INSPECTION END
NO >> Replace three way catalyst assembly.
SEF156I
Spark should be generated.

EC-848
< COMPONENT DIAGNOSIS >[MR18DE]
P0172 FUEL INJECTION SYSTEM FUNCTION
P0172 FUEL INJECTION SYSTEM FUNCTION
DTC LogicINFOID:0000000001161816
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-696, "
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-849, "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-849, "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

EC-858
< COMPONENT DIAGNOSIS >[MR18DE]
P0300, P0301, P0302, P0303, P0304 MISFIRE
7.CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
Is the inspection result normal?
YES >> Replace spark plug(s) with standard type one(s). For
spark plug type, refer to EM-145, "
Removal and Installa-
tion".
NO >> Repair or clean spark plug. Then GO TO 8.
8.CHECK FUNCTION OF IGNITION COIL-III
1. Reconnect the initial spark plugs.
2. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and
the grounded portion.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-145, "
Removal
and Installation".
9.CHECK COMPRESSION PRESSURE
Check compression pressure. Refer to EM-151, "
Checking Compression Pressure".
Is the inspection result normal?
YES >> GO TO 10.
NO >> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.
10.CHECK FUEL PRESSURE
1. Install all removed parts.
2. Check fuel pressure. Refer to EC-1035, "
Inspection".
Is the inspection result normal?
YES >> GO TO 12.
NO >> GO TO 11.
11 .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.
12.CHECK IGNITION TIMING
For procedure, refer to EC-689, "
BASIC INSPECTION : Special Repair Requirement".
For specification, refer to EC-1038, "
Idle Speed" and EC-1038, "Ignition Timing".
Is the inspection result normal?
YES >> GO TO 13.
NO >> Follow the EC-693, "
IGNITION TIMING : Special Repair Requirement".
13.CHECK HEATED OXYGEN SENSOR 1 HEATER
Refer to EC-829, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 14.
NO >> Replace heated oxygen sensor 1.
SEF156I
Spark should be generated.

EC-874
< COMPONENT DIAGNOSIS >[MR18DE]
P0420 THREE WAY CATALYST FUNCTION
NO >> Check ignition coil, power transistor and their circuits. Refer to EC-981, "Diagnosis Procedure".
8.CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
Is the inspection result normal?
YES >> Replace spark plug(s) with standard type one(s). For
spark plug type, refer to EM-145, "
Removal and Installa-
tion".
NO >> Repair or clean spark plug. Then GO TO 9.
9.CHECK FUNCTION OF IGNITION COIL-III
1. Reconnect the initial spark plugs.
2. Crank engine for about three seconds, and recheck whether spark is generated between the spark plug
and the grounded portion.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-145, "
Removal
and Installation".
10.CHECK FUEL INJECTOR
1. Turn ignition switch OFF.
2. Remove fuel injector assembly.
Refer to EM-162, "
Removal and Installation".
Keep fuel hose and all fuel injectors connected to fuel tube.
3. Disconnect all ignition coil harness connectors.
4. Reconnect all fuel injector harness connectors disconnected.
5. Turn ignition switch ON.
Does fuel drip from fuel injector?
YES >> GO TO 11.
NO >> Replace the fuel injector(s) from which fuel is dripping.
11 .CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
Is the trouble fixed?
YES >> INSPECTION END
NO >> Replace three way catalyst assembly.
SEF156I
Spark should be generated.

PERIODIC MAINTENANCE
MA-7
< ON-VEHICLE MAINTENANCE >
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PERIODIC MAINTENANCE
Periodic MaintenanceINFOID:0000000001277598
The following tables show the normal maintenance schedule. Depending upon weather and atmospheric con-
ditions, varying road surfaces, individual driving habits and vehicle usage, additional or more frequent mainte-
nance may be required.
Periodic maintenance beyond the last period shown on the tables requires similar maintenance.
ENGINE AND EMISSION CONTROL MAINTENANCE (MR ENGINE)
(Annual Mileage <30,000 Km/year)
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace, [ ] = At the specified mileage only.
NOTE:
 Maintenance items with “ ” should be performed more frequently according to “Maintenance Under Severe Driving Con-
ditions”.
(1)Periodic maintenance is not required. However, if valve noise increases, check valve clearance.
(2) Replace the drive belt if found damaged.
(3) First replace at 90,000 Km (54,000 miles)/60 months, then every 60,000 km (36,000 miles)/48 months. Perform "I" (Check-
ing the mixture ratio and correcting the mixture ratio if necessary) at the middle of replacement interval.
(4) Fuel filter is maintenance-free. For service procedures, refer to FL section.
(5) Perform only according to “Maintenance Under Severe Driving conditions” for models without Euro-OBD system. For
models with Euro-OBD system, periodic maintenance is not required.
CHASSIS AND BODY MAINTENANCE (MR ENGINE)
(Annual Mileage <30,000 Km/year)
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Refer-
ence
page Perform on a kilometer basis, but on an annual basis
when driving less than 30,000 km (18,000 miles) per 2
years.km x 1,000
(Miles x
1,000)
Months30
(18)
2460
(36)
4890
(54)
72120
(72)
96
Engine compartment and under vehicle
Intake and exhaust valve clearanceSee NOTE
(1)EM-238
Drive beltsSee NOTE
(2)IIIIMA-31
Engine oil (Use recommended oil.)RRRRMA-36
Engine oil filter (Use genuine NISSAN part or equiva-
lent)RRRRMA-39
Engine coolant (Use genuine NISSAN Engine Coolant
or equivalent in its quality.)See NOTE
(3)IIRIMA-31
Cooling system I I I ICO-35
Fuel lines I I I IMA-35
Air cleaner filterRRMA-35
Fuel filter (In-tank type)See NOTE
(4)—
Spark plugs [Platinum-tipped type] [R]MA-40
EVAP vapor lines (With carbon canister) I I I IMA-41
Heated oxygen sensor 1See NOTE
(5)EC-164

PERIODIC MAINTENANCE
MA-9
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NOTE:
 Maintenance items with “ ” should be performed more frequently according to “Maintenance Under Severe Driving Con-
ditions”.
(1)Periodic maintenance is not required. However, if valve noise increases, check valve clearance.
(2) Replace the drive belt if found damaged.
(3) First replace at 90,000 Km (54,000 miles)/60 months, then every 60,000 km (36,000 miles)/48 months. Perform "I" (Check-
ing the mixture ratio and correcting the mixture ratio if necessary) at the middle of replacement interval.
(4) Fuel filter is maintenance-free. For service procedures, refer to FL section.
(5) Perform only according to “Maintenance Under Severe Driving conditions” for models without Euro-OBD system. For
models with Euro-OBD system, periodic maintenance is not required.
CHASSIS AND BODY MAINTENANCE (HR ENGINE)
(Annual Mileage <30,000 Km/year)
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace.
Cooling system I I I ICO-11
Fuel lines I I I IMA-25
Air cleaner filterRRMA-26
Fuel filter (In-tank type)See NOTE
(4)—
Spark plugs [Platinum-tipped type] [R]MA-29
EVAP vapor lines (With carbon canister) I I I IMA-30
Heated oxygen sensor 1See NOTE
(5)EC-829
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Refer-
ence
page Perform on a kilometer basis, but on an annual basis
when driving less than 30,000 km (18,000 miles) per
year.km x 1,000
(Miles x
1,000)
Months30
(18)
2460
(36)
4890
(54)
72120
(72)
96
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference page Perform on a kilometer basis, but on an annual basis
when driving less than 30,000 km (18,000 miles) per
2 years.km x 1,000
(Miles x 1,000)
Months30
(18)
2460
(36)
4890
(54)
72120
(72)
96
Underhood and under vehicle
Headlamp aiming IIIIEXL-81
,
Brake & clutch, systems and fluid (For level & leaks) IIIIMA-54
,
MA-50
Brake fluidRRRRMA-54
Brake booster vacuum hoses, connections & check
valveIIIIBR-22,
BR-17
Automatic transaxle fluid (For level & leaks)See
NOTE
(1)IIIIMA-51(RE4F03B)
MA-52
(RS9F94B)
Manual transaxle gear oil (For level & leaks) IIIIMA-50
Steering gear & linkage, axle & suspension parts,
propeller shaft, drive shafts & exhaust systemIIIIMA-56,
Wheel alignment (If necessary, rotate & balance
wheels)IIIIFSU-6
,
RSU-5
,
Brake pads, rotors & other brake componentsIIIIMA-55
,
Foot brake, parking brake & clutch (For free play,
stroke & operation)IIIIBR-6
,
PB-4
,
CL-5
,