2008 INFINITI FX35 Service Manual

auxiliary battery location language rear view mirror TPMS reset park assist oil capacities

Page 2137 of 3924

INFINITI FX35 2008 Service Manual
DTC P0300 - P0308 MULTIPLE CYLINDER MISFIRE, NO. 1 - 8 CYLINDER MIS-
FIRE
EC-897
< SERVICE INFORMATION > [VK45DE]
C
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EC
NP
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4.CHECK FUNCTION OF FUEL INJECTOR-I
Without CONSULT

Page 2138 of 3924

INFINITI FX35 2008 Service Manual
EC-898
< SERVICE INFORMATION >[VK45DE]
DTC P0300 - P0308 MULTIPLE CYLINDER
MISFIRE, NO. 1 - 8 CYLINDER MIS-
FIRE
Provide battery voltage between the following terminals, and then
interrupt it. Liste

EC-898
< SERVICE INFORMATION >[VK45DE]
DTC P0300 - P0308 MULTIPLE CYLINDER
MISFIRE, NO. 1 - 8 CYLINDER MIS-
FIRE
Provide battery voltage between the following terminals, and then
interrupt it. Listen to each fuel injector operating sound.
OK or NG
OK >> GO TO 6.
NG >> Perform trouble diagnosis for EC-1149
.
6.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 in IPDM E/R to release fuel pressure.
NOTE:
Do not use CONSULT-III to releas e fuel pressure, or fuel pres-
sure applies again during the following procedure.
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 five 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 between the edge of the spark plug and grounded metal portion
as shown in the figure.
11. Crank engine for about three seconds, and check whether spark
is generated between the spark plug and the grounded metal
portion.
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 ignition coil if the gap of more than 17 mm is taken.
NOTE:
When the gap is less than 13 mm, the spark might be generated even if the coil is malfunctioning.
OK or NG
OK >> GO TO 10.
Cylinder Harness connector terminal
(+) (–)
1
F201 5 3
32
51
76
2
F221 5 3
42
61
86
Operating sound should exist.
PBIB2449E
Spark should be generated.
PBIB1482E
PBIB2325E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

Page 2139 of 3924

INFINITI FX35 2008 Service Manual
DTC P0300 - P0308 MULTIPLE CYLINDER MISFIRE, NO. 1 - 8 CYLINDER MIS-
FIRE
EC-899
< SERVICE INFORMATION > [VK45DE]
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NP
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NG >> GO TO 7.
7.CHECK FUNCTION OF
IGNITION COIL-II

DTC P0300 - P0308 MULTIPLE CYLINDER MISFIRE, NO. 1 - 8 CYLINDER MIS-
FIRE
EC-899
< SERVICE INFORMATION > [VK45DE]
C
D
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G H
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EC
NP
O
NG >> GO TO 7.
7.CHECK FUNCTION OF
IGNITION COIL-II
1. Turn ignition switch OFF.
2. Disconnect spark plug and connect a known-good spark plug.
3. Crank engine for about three seconds, and recheck whether spark is generated between the spark plug and the grounded metal portion.
OK or NG
OK >> GO TO 8.
NG >> Check ignition coil, power transistor and their circuits. Refer to EC-1166
.
8.CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
OK or NG
OK >> Replace malfunctioning spark plug(s) with standard type one(s). For spark plug type, refer to EM-188
.
NG >> 1. Repair or clean spark plug.
2. 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.
OK or NG
OK >> INSPECTION END
NG >> Replace malfunctioning spark plug(s) with standard type one(s). For spark plug type, refer to EM-
188.
10.CHECK COMPRESSION PRESSURE
Check compression pressure. Refer to EM-226, "
On-Vehicle Service".
OK or NG
OK >> GO TO 11.
NG >> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.
11 .CHECK FUEL PRESSURE
1. Install all removed parts.
2. Release fuel pressure to zero. Refer to EC-665, "
Fuel Pressure Check".
3. Install fuel pressure gauge and check fuel pressure. Refer to EC-665, "
Fuel Pressure Check".
OK or NG
OK >> GO TO 13.
NG >> GO TO 12.
12.DETECT MALFUNCTIONING PART
Check the following.
Fuel pump and circuit (Refer to EC-1155
.)
Fuel pressure regulator (Refer to EC-665, "
Fuel Pressure Check".)
Spark should be generated.
SEF156I
Spark should be generated.
At idling: Approximate
ly 350 kPa (3.57 kg/cm
2, 51 psi)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

Page 2140 of 3924

INFINITI FX35 2008 Service Manual
EC-900
< SERVICE INFORMATION >[VK45DE]
DTC P0300 - P0308 MULTIPLE CYLINDER
MISFIRE, NO. 1 - 8 CYLINDER MIS-
FIRE
Fuel lines (Refer to FL-3, "Checking Fuel Line".)
Fuel filter for clogging
>> Re

Page 2141 of 3924

INFINITI FX35 2008 Service Manual
DTC P0300 - P0308 MULTIPLE CYLINDER MISFIRE, NO. 1 - 8 CYLINDER MIS-
FIRE
EC-901
< SERVICE INFORMATION > [VK45DE]
C
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EC
NP
O
6. Also check harness for short to power.
OK or NG
OK

Page 2142 of 3924

INFINITI FX35 2008 Service Manual
EC-902
< SERVICE INFORMATION >[VK45DE]
DTC P0327, P0328,
P0332, P0333 KS
DTC P0327, P0328, P0332, P0333 KS
Component DescriptionINFOID:0000000001326731
The knock sensor is attached to t he cylinder

Page 2143 of 3924

INFINITI FX35 2008 Service Manual
DTC P0327, P0328, P0332, P0333 KS
EC-903
< SERVICE INFORMATION > [VK45DE]
C
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EC
NP
O
Wiring DiagramINFOID:0000000001326734
Specification data are reference values
and are measur

Page 2144 of 3924

INFINITI FX35 2008 Service Manual
EC-904
< SERVICE INFORMATION >[VK45DE]
DTC P0327, P0328,
P0332, P0333 KS
Diagnosis Procedure
INFOID:0000000001326735
1.CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I
1. Turn ignition s

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