2007 NISSAN TIIDA low oil pressure

ENGINE CONTROL SYSTEM SYMPTOMS
EC-671
< SYMPTOM DIAGNOSIS >[HR16DE (WITHOUT EURO-OBD)]
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1 - 6: The numbers refer to the order of inspection.
(continued on next page)
SYSTEM — ENGINE MECHANICAL & OTHER
Vehicle speed signal circuit 2 3 3 3EC-634
ECM 22333333333EC-524,
EC-526
Intake valve timing control solenoid valve cir-
cuit32 13223 3EC-528
PNP switch circuit 3 3 3 3 3EC-566
Refrigerant pressure sensor circuit 2 3 3 4EC-632
Electrical load signal circuit 3EC-597
Air conditioner circuit 223333333 3 2HAC-298

(with NAVI)
HAC-
184(with-
out NAVI)
ABS actuator and electric unit (control unit) 4BRC-86
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA

EC-682
< ON-VEHICLE MAINTENANCE >[HR16DE (WITHOUT EURO-OBD)]
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-698
< FUNCTION DIAGNOSIS >[MR18DE]
ENGINE CONTROL SYSTEM
System Description
INFOID:0000000001161720
ECM performs various controls such as fuel injection control and ignition timing control.
Component Parts LocationINFOID:0000000001161721
1. Ignition coil (with power transistor)
and spark plug2. Intake valve timing control solenoid
valve3. Refrigerant pressure sensor
4. Knock sensor 5. Fuel injector 6. Cooling fan motor
7. Camshaft position sensor (PHASE) 8. IPDM E/R 9. ECM
10. Mass air flow sensor (with intake
temperature sensor)11. Engine coolant temperature sensor 12. Electric throttle control actuator
(with built in throttle position sensor
and throttle control motor)
13. EVAP canister purge volume control
solenoid valve
PBIB3261E

EC-708
< FUNCTION DIAGNOSIS >[MR18DE]
MULTIPORT FUEL INJECTION SYSTEM
Component Parts Location
INFOID:0000000001603910
1. Ignition coil (with power transistor)
and spark plug2. Intake valve timing control solenoid
valve3. Refrigerant pressure sensor
4. Knock sensor 5. Fuel injector 6. Cooling fan motor
7. Camshaft position sensor (PHASE) 8. IPDM E/R 9. ECM
10. Mass air flow sensor (with intake
temperature sensor)11. Engine coolant temperature sensor 12. Electric throttle control actuator
(with built in throttle position sensor
and throttle control motor)
13. EVAP canister purge volume control
solenoid valve
PBIB3261E

ELECTRIC IGNITION SYSTEM
EC-715
< FUNCTION DIAGNOSIS >[MR18DE]
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operate under normal driving conditions. If engine knocking occurs, the knock sensor monitors the condition.
The signal is transmitted to the ECM. The ECM retards the ignition timing to eliminate the knocking condition.
Component Parts LocationINFOID:0000000001603911
1. Ignition coil (with power transistor)
and spark plug2. Intake valve timing control solenoid
valve3. Refrigerant pressure sensor
4. Knock sensor 5. Fuel injector 6. Cooling fan motor
7. Camshaft position sensor (PHASE) 8. IPDM E/R 9. ECM
10. Mass air flow sensor (with intake
temperature sensor)11. Engine coolant temperature sensor 12. Electric throttle control actuator
(with built in throttle position sensor
and throttle control motor)
13. EVAP canister purge volume control
solenoid valve
PBIB3261E

EC-722
< FUNCTION DIAGNOSIS >[MR18DE]
AIR CONDITIONING CUT CONTROL
 When refrigerant pressure is excessively low or high.
Component Parts LocationINFOID:0000000001603912
1. Ignition coil (with power transistor)
and spark plug2. Intake valve timing control solenoid
valve3. Refrigerant pressure sensor
4. Knock sensor 5. Fuel injector 6. Cooling fan motor
7. Camshaft position sensor (PHASE) 8. IPDM E/R 9. ECM
10. Mass air flow sensor (with intake
temperature sensor)11. Engine coolant temperature sensor 12. Electric throttle control actuator
(with built in throttle position sensor
and throttle control motor)
13. EVAP canister purge volume control
solenoid valve
PBIB3261E

EC-730
< FUNCTION DIAGNOSIS >[MR18DE]
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
Component Parts Location
INFOID:0000000001603913
1. Ignition coil (with power transistor)
and spark plug2. Intake valve timing control solenoid
valve3. Refrigerant pressure sensor
4. Knock sensor 5. Fuel injector 6. Cooling fan motor
7. Camshaft position sensor (PHASE) 8. IPDM E/R 9. ECM
10. Mass air flow sensor (with intake
temperature sensor)11. Engine coolant temperature sensor 12. Electric throttle control actuator
(with built in throttle position sensor
and throttle control motor)
13. EVAP canister purge volume control
solenoid valve
PBIB3261E

COOLING FAN CONTROL
EC-739
< FUNCTION DIAGNOSIS >[MR18DE]
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Component Parts LocationINFOID:0000000001603914
1. Ignition coil (with power transistor)
and spark plug2. Intake valve timing control solenoid
valve3. Refrigerant pressure sensor
4. Knock sensor 5. Fuel injector 6. Cooling fan motor
7. Camshaft position sensor (PHASE) 8. IPDM E/R 9. ECM
10. Mass air flow sensor (with intake
temperature sensor)11. Engine coolant temperature sensor 12. Electric throttle control actuator
(with built in throttle position sensor
and throttle control motor)
13. EVAP canister purge volume control
solenoid valve
PBIB3261E