engine NISSAN TIIDA 2007 Service Repair Manual

EC-1030
< PRECAUTION >[MR18DE]
PRECAUTIONS
On Board Diagnostic (OBD) System of Engine
INFOID:0000000001679887
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MI) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
 Be sure to turn the ignition switch OFF and disconnect the negative battery cable before any repair
or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc. will
cause the MI to light up.
 Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MI to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
 Certain systems and components, especially those related to OBD, may use a new style slide-lock-
ing type harness connector. For description and how to disconnect, refer to XX-XX, "*****"
.
 Be sure to route and secure the harnesses properly after work. The interference of the harness with
a bracket, etc. may cause the MI to light up due to the short circuit.
 Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MI to light up due to the malfunction of the EVAP system or fuel injection system, etc.
 Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM before
returning the vehicle to the customer.
General PrecautionsINFOID:0000000001162002
Always use a 12 volt battery as power source.
Do not attempt to disconnect battery cables while engine is
running.
Before connecting or disconnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect negative bat-
tery cable. Failure to do so may damage the ECM because
battery voltage is applied to ECM even if ignition switch is
turned OFF.
Before removing parts, turn ignition switch OFF and then dis-
connect battery ground cable.
Do not disassemble ECM.
If a battery cable is disconnected, the memory will return to
the ECM value.
The ECM will now start to self-control at its initial value.
Engine operation can vary slightly when the terminal is dis-
connected. However, this is not an indication of a malfunc-
tion. Do not replace parts because of a slight variation.
If the battery is disconnected, the following emission-related
diagnostic information will be lost within 24 hours.
-Diagnostic trouble codes
-1st trip diagnostic trouble codes
-Freeze frame data
-1st trip freeze frame data
-System readiness test (SRT) codes
-Test values
When connecting ECM harness connector (1), fasten (B) it
securely with a lever as far as it will go as shown in the figure.
SEF289H
2. ECM
A. Loosen
PBIA9222J
PBIB2947E

PRECAUTIONS
EC-1031
< PRECAUTION >[MR18DE]
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When connecting or disconnecting pin connectors into or
from ECM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on ECM pin
terminal, when connecting pin connectors.
Securely connect ECM harness connectors.
A poor connection can cause an extremely high (surge) volt-
age to develop in coil and condenser, thus resulting in dam-
age to ICs.
Keep engine control system harness at least 10 cm (4 in) away
from adjacent harness, to prevent engine control system mal-
functions due to receiving external noise, degraded operation
of ICs, etc.
Keep engine control system parts and harness dry.
Before replacing ECM, perform ECM Terminals and Reference
Value inspection and make sure ECM functions properly.
Refer to EC-990, "
Reference Value".
Handle mass air flow sensor carefully to avoid damage.
Do not clean mass air flow sensor with any type of detergent.
Do not disassemble electric throttle control actuator.
Even a slight leak in the air intake system can cause serious
incidents.
Do not shock or jar the camshaft position sensor (PHASE),
crankshaft position sensor (POS).
After performing each TROUBLE DIAGNOSIS, perform DTC
CONFIRMATION PROCEDURE or Component Function
Check. The DTC should not be displayed in the DTC Confirmation
Procedure if the repair is completed. The Component Function
Check should be a good result if the repair is completed.
PBIB0090E
MEF040D
SAT652J

EC-1032
< PRECAUTION >[MR18DE]
PRECAUTIONS
When measuring ECM signals with a circuit tester, never allow
the two tester probes to contact.
Accidental contact of probes will cause a short circuit and
damage the ECM power transistor.
Do not use ECM ground terminals when measuring input/out-
put voltage. Doing so may result in damage to the ECM’s tran-
sistor. Use a ground other than ECM terminals, such as the
ground.
Do not operate fuel pump when there is no fuel in lines.
Tighten fuel hose clamps to the specified torque.
Do not depress accelerator pedal when starting.
Immediately after starting, do not rev up engine unnecessar-
ily.
Do not rev up engine just prior to shutdown.
When installing C.B. ham radio or a mobile phone, be sure to
observe the following as it may adversely affect electronic
control systems depending on installation location.
-Keep the antenna as far as possible from the electronic con-
trol units.
-Keep the antenna feeder line more than 20 cm (8 in) away
from the harness of electronic controls.
Do not let them run parallel for a long distance.
-Adjust the antenna and feeder line so that the standing-wave
ratio can be kept smaller.
-Be sure to ground the radio to vehicle body.
SEF348N
SEF709Y
SEF708Y

PREPARATION
EC-1033
< PREPARATION >[MR18DE]
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PREPARATION
PREPARATION
Special Service ToolsINFOID:0000000001162003
Commercial Service ToolsINFOID:0000000001162004
Tool number
Tool nameDescription
KV10117100
Heated oxygen sensor
wrenchLoosening or tightening heated oxygen sensor
with 22 mm (0.87 in) hexagon nut
KV10114400
Heated oxygen sensor
wrenchLoosening or tightening heated oxygen sensor 2
a: 22 mm (0.87 in)
KV10118400
Fuel tube adapterMeasuring fuel pressure
S-NT379
S-NT636
PBIB3043E
Tool name Description
Quick connector re-
leaseRemoving fuel tube quick connectors in engine
room
(Available in SEC. 164 of PARTS CATALOG: Par
No. 16441 6N210)
Socket wrench Removing and installing engine coolant tempera-
ture sensor
PBIC0198E
S-NT705

FUEL PRESSURE
EC-1035
< ON-VEHICLE REPAIR >[MR18DE]
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ON-VEHICLE REPAIR
FUEL PRESSURE
InspectionINFOID:0000000001162005
FUEL PRESSURE RELEASE
With CONSULT-III
1. Turn ignition switch ON.
2. Perform “FUEL PRESSURE RELEASE” in “WORK SUPPORT” mode with CONSULT-III.
3. Start engine.
4. After engine stalls, crank it two or three times to release all fuel pressure.
5. Turn ignition switch OFF.
With CONSULT-III
1. Remove fuel pump fuse located in IPDM E/R.
2. Start engine.
3. After engine stalls, crank it two or three times to release all fuel pressure.
4. Turn ignition switch OFF.
5. Reinstall fuel pump fuse after servicing fuel system.
FUEL PRESSURE CHECK
CAUTION:
 Before disconnecting fuel line, release fuel pressure from fuel line to eliminate danger.
 The fuel hose connection method used when taking fuel pressure check must not be used for other
purposes.
 Be careful not to scratch or put debris around connection area when servicing, so that the quick
connector maintains sealability with O-rings inside.
 Do not perform fuel pressure check with electrical systems operating (i.e. lights, rear defogger, A/C,
etc.) Fuel pressure gauge may indicate false readings due to varying engine load and changes in
manifold vacuum.
NOTE:
Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel pres-
sure cannot be completely released because C11 models do not have fuel return system.
1. Release fuel pressure to zero.
2. Prepare fuel hose for fuel pressure check B and fuel tube
adapter (KV10118400) D, then connect fuel pressure gauge A.
 : To quick connector
 : To fuel tube (engine side)
 C: Clamp
 Use suitable fuel hose for fuel pressure check (genuine NIS-
SAN fuel hose without quick connector).
 To avoid unnecessary force or tension to hose, use moder-
ately long fuel hose for fuel pressure check.
 Do not use the fuel hose for checking fuel pressure with dam-
age or cracks on it.
 Use Pressure Gauge to check fuel pressure.
3. Remove fuel hose.
 Do not twist or kink fuel hose because it is plastic hose.
PBIB2982E

EC-1036
< ON-VEHICLE REPAIR >[MR18DE]
FUEL PRESSURE
4. Connect fuel hose for fuel pressure check (1) to fuel tube
(engine side) with clamp (2) as shown in the figure.
 No.2 spool (5)
 Wipe off oil or dirt from hose insertion part using cloth moist-
ened with gasoline.
 Apply proper amount of gasoline between top of the fuel tube
(3) and No.1 spool (4).
 Insert fuel hose for fuel pressure check until it touches the
No.1 spool on fuel tube.
 Use NISSAN genuine hose clamp (part number: 16439 N4710
or 16439 40U00).
 When reconnecting fuel line, always use new clamps.
 Use a torque driver to tighten clamps.
 Install hose clamp to the position within 1 - 2 mm (0.04 - 0.08 in).
 Make sure that clamp screw does not contact adjacent parts.
5. Connect fuel tube adapter to quick connector.
 A: Fuel pressure gauge
 B: Fuel hose for fuel pressure check
6. After connecting fuel hose for fuel pressure check, pull the hose
with a force of approximately 98 N (10 kg, 22 lb) to confirm fuel
tube does not come off.
7. Turn ignition switch ON and check for fuel leakage.
8. Start engine and check for fuel leakage.
9. Read the indication of fuel pressure gauge.
 Do not perform fuel pressure check with system operating.
Fuel pressure gauge may indicate false readings.
 During fuel pressure check, confirm for fuel leakage from fuel connection every 3 minutes.
10. If result is unsatisfactory, go to next step.
11. Check the following.
 Fuel hoses and fuel tubes for clogging
 Fuel filter for clogging
 Fuel pump
 Fuel pressure regulator for clogging
If OK, replace fuel pressure regulator.
If NG, repair or replace.Tightening torque: 1 - 1.5 N·m (0.1 - 0.15 kg-m, 9 - 13 in-lb)
At idling:
Approximately 350 kPa (3.5 bar, 3.57 kg/cm
2, 51 psi)
PBIB2983E
PBIB2984E

EC-1038
< SERVICE DATA AND SPECIFICATIONS (SDS) [MR18DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Idle SpeedINFOID:0000000001162007
*: Under the following conditions
 A/C switch: OFF
 Electric load: OFF (Lights, heater fan & rear window defogger)
 Steering wheel: Kept in straight-ahead position
Ignition TimingINFOID:0000000001162008
*: Under the following conditions
 A/C switch: OFF
 Electric load: OFF (Lights, heater fan & rear window defogger)
 Steering wheel: Kept in straight-ahead position
Calculated Load ValueINFOID:0000000001162009
Mass Air Flow SensorINFOID:0000000001162010
*: Engine is warmed up to normal operating temperature and running under no load.Condition Specification
No load* (in Neutral position) 700 ± 50 rpm
Condition Specification
No load* (in Neutral position) 15 ± 5° BTDC
Condition Specification (Using CONSULT-III or GST)
At idle10 – 35 %
At 2,500 rpm10 – 35 %
Supply voltageBattery voltage (11 – 14 V)
Output voltage at idle0.8 – 1.1V*
Mass air flow (Using CONSULT-III or GST)1.0 – 4.0 g·m/sec at idle*
2.0 – 10.0 g·m/sec at 2,500 rpm*

DIAGNOSIS AND REPAIR WORKFLOW
EC-1041
< BASIC INSPECTION >[K9K]
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There are present DTCs and stored DTCs (which appeared in a certain context and have since disappeared
or which are still present but have not had trouble diagnosis performed on them in the current context).
The “present” or “stored” status of DTCs must be considered when activating the diagnostic tool after power is
supplied to the ECM (without activating the system components).
Deal with present DTCs according to the procedure specified in the corresponding DTC trouble diagnosis.
For stored DTCs, note the DTCs displayed and follow the instructions in the Notes section.
If the DTC is confirmed when the instructions in the Notes section are applied, the malfunction is present. Deal
with the DTC.
If the DTC is not confirmed, check: Electrical lines which correspond to the malfunction
 Connectors for these lines (for oxidation, bent pins, etc.)
 Resistance of the malfunction component
 Condition of the wires (melted or cut insulation, wear)
Conformity Check
The conformity check is designed to check the states and data monitor items which do not display any DTCs
on the diagnostic tool when inconsistent. This phase therefore allows:
 Diagnoses malfunctions that do not have a DTC display, and which may correspond to a customer com-
plaint.
 Checks that the system is operating correctly and that there is no risk of a DTC reappearing after repairs.
This section gives the trouble diagnosis procedures for states and parameters and the conditions for checking
them.
If a state is not operating normally or a data monitor value is outside permitted tolerance values, you should
consult the corresponding trouble diagnosis page.
Customer Complaints - Trouble Diagnosis
If the test with the CONSULT-III is OK, but the customer complaint still present, the malfunction should be
treated by customer complaints.
SAFETY ADVICE
 The safety instructions must be followed at all times when working on components, to avoid damage or
injury:
- make sure that the battery is properly charged to avoid damaging the computers with a low load,
- use the appropriate tools,
- do not touch the xenon bulbs.
Diagnostic Work SheetINFOID:0000000001162513
DESCRIPTION
There are many operating conditions that lead to the malfunction of
engine components. A good grasp of such conditions can make trou-
bleshooting faster and more accurate.
In general, each customer feels differently about a incident. It is
important to fully understand the symptoms or conditions for a cus-
tomer complaint.
Utilize a diagnostic worksheet like the one on the next page in order
to organize all the information for troubleshooting.
Some conditions may cause the MI to come on steady or blink and
DTC to be detected. Examples:
 Vehicle ran out of fuel, which caused the engine to misfire.
 Fuel filler cap was left off or incorrectly screwed on, allowing fuel to
evaporate into the atmosphere.A synopsis of the general procedure to follow is pro-
vided on the previous page in the form of a flow
chart.
SEF907L

INSPECTION AND ADJUSTMENT
EC-1043
< BASIC INSPECTION >[K9K]
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INSPECTION AND ADJUSTMENT
BASIC INSPECTION
BASIC INSPECTION : DescriptionINFOID:0000000001162514
NOTE:
Only consult the tests after following the diagnostic procedure chart.
Some specific checks are grouped under the “tests” heading and are used as required in different diagnostic
charts.
BASIC INSPECTION : Special Repair Requirement (TEST 1: Low Pressure Fuel Sup-
ply System Check)
INFOID:0000000001162515
NOTE:
CAUSE
- No fuel can be seen in the transparent supply pipe leading to the pump or large air bubbles can be seen
(small air bubbles are permitted).
- engine does not start.
1.CHECK CONFORMITY
Check the conformity and presence of the fuel (gasoline instead of diesel, contaminated fuel).
Is the inspection result normal?
Yes >> GO TO 2.
No >> Bleed the fuel supply system with the manual priming pump.
Basic test Trouble diagnosis Reference page
Low pressure fuel supply system check TEST 1EC-1043, "
BASIC INSPEC-
TION : Special Repair Re-
quirement (TEST 1: Low
Pressure Fuel Supply System
Check)"
Internal fuel transfer pump check TEST 2EC-1044, "
BASIC INSPEC-
TION : Special Repair Re-
quirement (TEST 2: Internal
Fuel Transfer Pump Check)"
High pressure supply pump (Pressure control valve) check TEST 3EC-1044, "
BASIC INSPEC-
TION : Special Repair Re-
quirement [TEST 3: High
Pressure Supply Pump (Pres-
sure Control Valve) Check]"
High pressure supply pump (Volumetric control valve) check TEST 4EC-1045, "
BASIC INSPEC-
TION : Special Repair Re-
quirement [TEST 4: High
Pressure Supply Pump (Volu-
metric Control Valve) Check]"
Rail high pressure regulation check TEST 5EC-1048, "
BASIC INSPEC-
TION : Special Repair Re-
quirement (TEST 5: Rail High
Pressure Regulation Check)"
Major leak in fuel injectors/fuel injectors open TEST 6EC-1052, "
BASIC INSPEC-
TION : Special Repair Re-
quirement (TEST 6: Major
Leak in Fuel Injectors/Fuel In-
jectors Open)"
Incorrect fuel injection quantity TEST 7EC-1053, "
BASIC INSPEC-
TION : Special Repair Re-
quirement (TEST 7: Incorrect
Fuel Injection Quantity)"

EC-1044
< BASIC INSPECTION >[K9K]
INSPECTION AND ADJUSTMENT
2.CHECK FUEL CIRCUIT
Does the fuel circulate correctly when pumped manually?
Ye s o r N o
Ye s > > G O T O 5 .
No >> GO TO 3.
3.CHECK FOR LEAK
Look for leaks on the unions.
Are there leaks in the hoses and unions?
Yes >> Carry out the required repairs.
No >> GO TO 4.
4.CHECK FUEL FILTER
Check the correctness of the fuel filter.
Is the fuel filter correct?
Ye s > > G O T O 5 .
No >> Replace the fuel filter with a genuine part.
5.INSPECTION END
Low pressure circuit OK.
>>INSPECTION END
BASIC INSPECTION : Special Repair Requirement (TEST 2: Internal Fuel Transfer
Pump Check)
INFOID:0000000001162516
NOTE:
CONDITIONS PRIOR TO TEST
- Test 1 Low pressure fuel supply system check has been carried out previously and results are satisfactory.
CAUSE
- Fuel can be seen in the transparent supply pipe leading to the pump.
- However, fuel does not move during starting.
1.CHECK INTERNAL FUEL TRANSFER PUMP
1. Disconnect high pressure supply pump (volumetric control valve) harness connector
2. Remove fuel return pipe from the pump and block it so that it is sealed. Connect a pipe to the pump to
measure the flow of diesel.
3. To authorise a 15 second cranking engine and carry out this test it is essential to carry out the following
procedure: measure the flow of diesel.
- Turn ignition switch ON.
- Perform “SAVE DATA FOR CPU REPLC” in WORK SUPPORT mode with CONSULT-III.
- Perform “PRGRM REINITIALIZE” in WORK SUPPORT mode with CONSULT-III.
- Cranking engine for at least 15 seconds (starting speed 250 rpm)
- Check the flow rate of the fuel being collected in a graduated measuring cylinder (500 ml minimum).The
minimum flow rate must be 25 ml every 15 sec.
- Perform “WRT DATA AFTR REPLC CPU” in WORK SUPPORT mode with CONSULT-III.
Does the flow measure less than 25ml?
Yes >> Replace high pressure supply pump.
No >> GO TO 2.
2.INSPECTION END
Low pressure system OK.
>>INSPECTION END
BASIC INSPECTION : Special Repair Requirement [TEST 3: High Pressure Supply