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![INFINITI FX35 2004 Service Manual EC-952
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DTC P0300 - P0308 MULTIPLE CYLINDER MISFIRE, NO. 1 - 8 CYLINDER MIS-
FIRE
Revision: 2004 November 2004 FX35/FX45
5. CHECK IGNITION SPARK
1. Turn ignition switch OFF.
2. Remove ignition INFINITI FX35 2004 Service Manual EC-952
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DTC P0300 - P0308 MULTIPLE CYLINDER MISFIRE, NO. 1 - 8 CYLINDER MIS-
FIRE
Revision: 2004 November 2004 FX35/FX45
5. CHECK IGNITION SPARK
1. Turn ignition switch OFF.
2. Remove ignition](/manual-img/42/57021/w960_57021-2292.png)
EC-952
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DTC P0300 - P0308 MULTIPLE CYLINDER MISFIRE, NO. 1 - 8 CYLINDER MIS-
FIRE
Revision: 2004 November 2004 FX35/FX45
5. CHECK IGNITION SPARK
1. Turn ignition switch OFF.
2. Remove ignition coil assembly from rocker cover.
3. Connect a known-good spark plug to the ignition coil.
4. Disconnect all injector harness connectors.
5. Place end of spark plug against a suitable ground and crank engine.
6. Check for spark.
OK or NG
OK >> GO TO 6.
NG >> Check ignition coil, power transistor and their circuits.
Refer to EC-1262, "
IGNITION SIGNAL" .
6. CHECK SPARK PLUGS
Remove the spark plugs and check for fouling, etc.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace spark plug(s) with standard type
one(s). For spark plug type, refer to, MA-26, "
Changing
Spark Plugs (Platinum-Tipped Type)" .
7. CHECK COMPRESSION PRESSURE
Check compression pressure. Refer to EM-98, "
CHECKING COMPRESSION PRESSURE" .
OK or NG
OK >> GO TO 8.
NG >> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.
8. CHECK FUEL PRESSURE
1. Install all removed parts.
2. Release fuel pressure to zero. Refer to EC-700, "
FUEL PRESSURE RELEASE" .
3. Install fuel pressure gauge and check fuel pressure. Refer to EC-701, "
FUEL PRESSURE CHECK" .
OK or NG
OK >> GO TO 10.
NG >> GO TO 9.
SEF575Q
SEF156I
Standard:
1,320 kPa (13.5 kg/cm2 , 191 psi)/300 rpm
Minimum:
1,130 kPa (11.5 kg/cm
2 , 164 psi)/300 rpm
Difference between each
cylinder:98 kPa (1.0 kg/cm
2 , 14 psi)/300 rpm
At idle: Approx. 350 kPa (3.57 kg/cm
2 , 51 psi)
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![INFINITI FX35 2004 Service Manual EC-974
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DTC P0420, P0430 THREE WAY CATALYST FUNCTION
Revision: 2004 November 2004 FX35/FX45
4. CHECK IGNITION TIMING
Check the following items. Refer to EC-733, "
Basic Inspection" .
OK or NG
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DTC P0420, P0430 THREE WAY CATALYST FUNCTION
Revision: 2004 November 2004 FX35/FX45
4. CHECK IGNITION TIMING
Check the following items. Refer to EC-733, "
Basic Inspection" .
OK or NG](/manual-img/42/57021/w960_57021-2314.png)
EC-974
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DTC P0420, P0430 THREE WAY CATALYST FUNCTION
Revision: 2004 November 2004 FX35/FX45
4. CHECK IGNITION TIMING
Check the following items. Refer to EC-733, "
Basic Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Follow the EC-733, "
Basic Inspection" .
5. CHECK INJECTORS
1. Stop engine and then turn ignition switch ON.
2. Check voltage between ECM terminals 21, 22, 23, 40, 41, 42,
44, 63 and ground with CONSULT-II or tester.
Refer to Wiring Diagram for Injectors, EC-1275
.
OK or NG
OK >> GO TO 6.
NG >> Perform EC-1276, "
Diagnostic Procedure" .
6. CHECK IGNITION SPARK
1. Turn ignition switch OFF.
2. Remove ignition coil assembly from rocker cover.
3. Connect a known-good spark plug to the ignition coil assembly.
4. Disconnect all injector harness connectors.
5. Place end of spark plug against a suitable ground and crank engine.
6. Check for spark.
OK or NG
OK >> GO TO 7.
NG >> Check ignition coil with power transistor and their circuit.
Refer to EC-1262, "
IGNITION SIGNAL" .
Items Specifications
Target idle speed 650 ± 50 rpm (in P or N position)
Ignition timing 12 ± 5° BTDC (in P or N position)
Battery voltage should exist.
PBIB1527E
SEF575Q
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DTC P0420, P0430 THREE WAY CATALYST FUNCTION
EC-975
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7. CHECK INJECTOR
1. Turn ignition switch OFF.
2. Remove injector assembly.
Refer to EM-188, "
FUEL INJECTOR AND FUEL TUBE" .
Keep fuel hose and all injectors connected to injector gallery.
3. Disconnect all ignition coil harness connectors.
4. Reconnect injector harness connectors.
5. Turn ignition switch ON.
Make sure fuel does not drip from injector.
OK or NG
OK (Does not drip.)>>GO TO 8.
NG (Drips.)>>Replace the injector(s) from which fuel is dripping.
8. CHECK INTERMITTENT INCIDENT
Refer to EC-784, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
Trouble is fixed.>>INSPECTION END
Trouble is not fixed.>>Replace three way catalyst assembly.
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![INFINITI FX35 2004 Service Manual DTC P1217 ENGINE OVER TEMPERATURE
EC-1143
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COMPONENT DESCRIPTION
The cooling fan at each speed when the current flows in the co INFINITI FX35 2004 Service Manual DTC P1217 ENGINE OVER TEMPERATURE
EC-1143
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COMPONENT DESCRIPTION
The cooling fan at each speed when the current flows in the co](/manual-img/42/57021/w960_57021-2483.png)
DTC P1217 ENGINE OVER TEMPERATURE
EC-1143
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COMPONENT DESCRIPTION
The cooling fan at each speed when the current flows in the cooling fan motor as follows.
CONSULT-II Reference Value in Data Monitor ModeABS00CAR
Specification data are reference values.
On Board Diagnosis LogicABS00CAS
If the cooling fan or another component in the cooling system malfunctions, engine coolant temperature will
rise.
When the engine coolant temperature reaches an abnormally high temperature condition, a malfunction is
indicated.
This self-diagnosis has the one trip detection logic.
CAUTION:
When a malfunction is indicated, be sure to replace the coolant. Refer to CO-36, "
Changing Engine
Coolant" . Also, replace the engine oil. Refer to LU-26, "Changing Engine Oil" .
1. Fill radiator with coolant up to specified level with a filling speed of 2 liters per minute. Be sure to
use coolant with the proper mixture ratio. Refer to MA-13, "
Anti-Freeze Coolant Mixture Ratio" .
2. After refilling coolant, run engine to ensure that no water-flow noise is emitted.
Overall Function CheckABS00CAT
Use this procedure to check the overall function of the cooling fan. During this check, a DTC might not be con-
firmed.
WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could be caused by high pres-
sure fluid escaping from the radiator.
Wrap a thick cloth around cap. Carefully remove the cap by turning it a quarter turn to allow built-up
pressure to escape. Then turn the cap all the way off.
Cooling fan speedCooling fan motor terminals
(+) (−)
High (HI) 1 and 2 3 and 4
MONITOR ITEM CONDITION SPECIFICATION
COOLING FAN
Engine: After warming up, idle
the engine
Air conditioner switch: OFFEngine coolant temperature is 94°C
(201°F) or lessOFF
Engine coolant temperature is 95°C
(203°F) or moreHI
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1217
1217Engine over tempera-
ture (Overheat)
Cooling fan does not operate properly (Over-
heat).
Cooling fan system does not operate prop-
erly (Overheat).
Engine coolant was not added to the system
using the proper filling method.
Engine coolant is not within the specified
range.
Harness or connectors
(The cooling fan circuit is open or
shorted.)
Cooling fan
Radiator hose
Radiator
Radiator cap
Water pump
Thermostat
For more information, refer to EC-1150,
"Main 12 Causes of Overheating" .
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IGNITION SIGNAL
EC-1269
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3. CHECK OVERALL FUNCTION
Without CONSULT-II
1. Let engine idle.
2. Read the voltage signal between ECM terminals 46, 60, 61, 62,
65, 79, 80, 81 and ground with an oscilloscope.
3. Verify that the oscilloscope screen shows the signal wave as
shown below.
NOTE:
The pulse cycle changes depending on rpm at idle.
OK or NG
OK >>INSPECTION END
NG >> GO TO 10.
4. CHECK IGNITION COIL POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
2. Check voltage between ECM terminals 119, 120 and ground
with CONSULT-II or tester.
OK or NG
OK >> GO TO 5.
NG >> Go to EC-785, "
POWER SUPPLY AND GROUND CIR-
CUIT" .
PBIB1549E
PBIB0044E
Voltage: Battery voltage
MBIB0034E
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![INFINITI FX35 2004 Service Manual EC-1270
[VK45DE]
IGNITION SIGNAL
Revision: 2004 November 2004 FX35/FX45
5. CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
3. Turn i INFINITI FX35 2004 Service Manual EC-1270
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IGNITION SIGNAL
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5. CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
3. Turn i](/manual-img/42/57021/w960_57021-2610.png)
EC-1270
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IGNITION SIGNAL
Revision: 2004 November 2004 FX35/FX45
5. CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
3. Turn ignition switch ON.
4. Check voltage between condenser terminal 1 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 8.
NG >> GO TO 6.
6. CHECK IGNITION COIL POWER SUPPLY CIRCUIT-III
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector E7.
3. Check harness continuity between IPDM E/R terminal 17 and condenser terminal 1.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> Go to EC-785, "POWER SUPPLY AND GROUND CIRCUIT" .
NG >> GO TO 7.
7. DETECT MALFUNCTIONING PART
Check the following.
Harness connector E19, F49
Harness for open or short between IPDM E/R and condenser
>> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB1532E
Voltage: Battery voltage
PBIB0624E
Continuity should exist.
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![INFINITI FX35 2004 Service Manual IGNITION SIGNAL
EC-1271
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8. CHECK CONDENSER GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check harness con INFINITI FX35 2004 Service Manual IGNITION SIGNAL
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8. CHECK CONDENSER GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check harness con](/manual-img/42/57021/w960_57021-2611.png)
IGNITION SIGNAL
EC-1271
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8. CHECK CONDENSER GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check harness continuity between condenser terminal 2 and ground.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 9.
NG >> Repair open circuit or short to power in harness or connectors.
9. CHECK CONDENSER
Refer to EC-1272, "
Component Inspection" .
OK or NG
OK >> GO TO 10.
NG >> Replace condenser.
10. CHECK IGNITION COIL POWER SUPPLY CIRCUIT-IV
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Disconnect ignition coil harness connector.
4. Turn ignition switch ON.
5. Check voltage between ignition coil terminal 3 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 12.
NG >> GO TO 11.
11 . DETECT MALFUNCTIONING PART
Check the following.
Harness connector F49
Harness for open or short between ignition coil and harness connector F49
>> Repair or replace harness or connectors. Continuity should exist.
Voltage: Battery voltage
PBIB1516E
PBIB0138E
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![INFINITI FX35 2004 Service Manual EC-1272
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IGNITION SIGNAL
Revision: 2004 November 2004 FX35/FX45
12. CHECK IGNITION COIL GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check harness continuity between ignit INFINITI FX35 2004 Service Manual EC-1272
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IGNITION SIGNAL
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12. CHECK IGNITION COIL GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check harness continuity between ignit](/manual-img/42/57021/w960_57021-2612.png)
EC-1272
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IGNITION SIGNAL
Revision: 2004 November 2004 FX35/FX45
12. CHECK IGNITION COIL GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check harness continuity between ignition coil terminal 2 and ground.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 13.
NG >> Repair open circuit or short to power in harness or connectors.
13. CHECK IGNITION COIL OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminals 46, 60, 61, 62, 65, 79, 80, 81 and ignition coil terminal
1.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 14.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
14. CHECK IGNITION COIL WITH POWER TRANSISTOR
Refer to EC-1272, "
Component Inspection" .
OK or NG
OK >> GO TO 15.
NG >> Replace ignition coil with power transistor.
15. CHECK INTERMITTENT INCIDENT
Refer to EC-784, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionABS00CEM
IGNITION COIL WITH POWER TRANSISTOR
1. Turn ignition switch OFF.
2. Disconnect ignition coil harness connector.
3. Check resistance between ignition coil terminals as follows.
CONDENSER
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.Continuity should exist.
Continuity should exist.
Terminal No. (Polarity) Resistance Ω [at 25°C (77°F)]
1 and 2 Except 0 or ∞
1 and 3
Except 0
2 and 3
PBIB0847E