2009 NISSAN LATIO Service Repair Manual

parking sensors MPG horn handbrake change wheel flat tire

Page 2641 of 4331

NISSAN LATIO 2009 Service Repair Manual DTC P0300 - P0304 MULTIPLE CYLINDER
MISFIRE, NO. 1 - 4 CYLINDER MIS-
FIRE
EC-1285
< SERVICE INFOMATION >
[MR TYPE 2] C
D E
F
G H
I
J
K L
M A EC
NP
O
Yes >> GO TO 4.
No >> GO TO 9. 4.
CHECK FUEL INJEC

DTC P0300 - P0304 MULTIPLE CYLINDER
MISFIRE, NO. 1 - 4 CYLINDER MIS-
FIRE
EC-1285
< SERVICE INFOMATION >
[MR TYPE 2] C
D E
F
G H
I
J
K L
M A EC
NP
O
Yes >> GO TO 4.
No >> GO TO 9. 4.
CHECK FUEL INJECTOR
Does each fuel injector make an operating sound at idle?
Yes or No Yes >> GO TO 5.
No >> Check fuel injector(s) and circuit(s). Refer to EC-1508 .
5.
CHECK FUNCTION OF IGNITION COIL-I
CAUTION:
Do the following procedure in the place where ventilation is good without the combustible.
1. Turn ignition switch OFF.
2. Remove fuel pump fuse (1) in IPDM E/R (2) to release fuel pres- sure.
NOTE:
Do not use CONSULT-III to release fuel pressure, or fuel pres-
sure applies again during the following procedure.
- : Vehicle front
3. Start engine.
4. After engine stalls, crank it two or three times to release all fuel
pressure.
5. Turn ignition switch OFF.
6. Remove all ignition coil harness connectors to avoid the electri-
cal discharge from the ignition coils.
7. Remove ignition coil and spark plug of the cylinder to be checked.
8. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
9. Connect spark plug and harness connector to ignition coil.
10. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 - 0.66 in) between the edge of the spark plug and grounded metal
portion as shown in the figure.
11. Crank engine for about 3 seconds, and check whether spark is generated between the spark plug and the grounded metal por-
tion.
CAUTION:
• Do not approach to the spar k plug and the ignition coil
within 50cm. Be careful not to get an electrical shock
while checking, because the el ectrical discharge voltage
becomes 20kV or more.
• It might cause to damage the igni tion coil if the gap of more than 17 mm (0.66 in) is taken.
NOTE:
When the gap is less than 13 mm (0.52 in), the sp ark might be generated even if the coil is mal-
functioning.
OK or NG OK >> GO TO 9.
NG >> GO TO 6. 6.
CHECK FUNCTION OF IGNITION COIL-II
1. Turn ignition switch OFF.
2. Disconnect spark plug and connect a known-good spark plug. PBIB3332E
Spark should be generated. PBIB2958E
PBIB2325E

Page 2642 of 4331

NISSAN LATIO 2009 Service Repair Manual EC-1286< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0300 - P0304 MULTIPLE CYLINDER
MISFIRE, NO. 1 - 4 CYLINDER MIS-
FIRE
3. Crank engine for about 3 seconds, and recheck whether spark is generated between

Page 2643 of 4331

NISSAN LATIO 2009 Service Repair Manual DTC P0300 - P0304 MULTIPLE CYLINDER
MISFIRE, NO. 1 - 4 CYLINDER MIS-
FIRE
EC-1287
< SERVICE INFOMATION >
[MR TYPE 2] C
D E
F
G H
I
J
K L
M A EC
NP
O 12.
CHECK IGNITION TIMING
Check the following item

Page 2644 of 4331

NISSAN LATIO 2009 Service Repair Manual OK >> GO TO 17.
NG >> Check connectors for rusted terminals or loose connections in the mass air flow sensor circuit or
ground. Refer to EC-1170 .
Symptom Matrix Chart " .
OK or NG OK >> GO TO 18.
NG

Page 2645 of 4331

NISSAN LATIO 2009 Service Repair Manual DTC P0327, P0328 KS
EC-1289
< SERVICE INFOMATION >
[MR TYPE 2] C
D E
F
G H
I
J
K L
M A EC
NP
O
DTC P0327, P0328 KS
Component Description INFOID:0000000004500143
The knock sensor (1) is attached

Page 2646 of 4331

NISSAN LATIO 2009 Service Repair Manual EC-1290< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0327, P0328 KS
Wiring Diagram INFOID:0000000004500146
Specification data are reference values and are measured between each terminal and ground.
CAUTION:

Page 2647 of 4331

NISSAN LATIO 2009 Service Repair Manual DTC P0327, P0328 KS
EC-1291
< SERVICE INFOMATION >
[MR TYPE 2] C
D E
F
G H
I
J
K L
M A EC
NP
O
Diagnosis Procedure
INFOID:00000000045001471.
CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT-I
1. Turn ignition

Page 2648 of 4331

NISSAN LATIO 2009 Service Repair Manual EC-1292< SERVICE INFOMATION >
[MR TYPE 2]
DTC P0327, P0328 KS
OK or NG OK >> GO TO 5.
NG >> Repair or replace ground connections. 5.
CHECK KNOCK SENSOR SHIELD CIRCUIT FOR OPEN AND SHORT
1. Reconnect k

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