Nissan March K13. Instruction — part 164
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
EC-117
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 1)]
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DETAILED PROCEDURE
1.
CHECK “A/F ALPHA-B1”
With CONSULT-III
1.
Start engine.
2.
Confirm that the testing conditions are met. Refer to
EC-115, "Component Function Check"
.
3.
Select “A/F ALPHA-B1” in “SPEC” of “DATA MONITOR” mode, and make sure that the indication is within
the SP value.
PBIB3213E
EC-118
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 1)]
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
NOTE:
Check “A/F ALPHA-B1” for approximately 1 minute because it may fluctuate. It is NG if the indication is
out of the SP value even a little.
Is the measurement value within the SP value?
YES
>> GO TO 17.
NO-1
>> Less than the SP value: GO TO 2.
NO-2
>> More than the SP value: GO TO 3.
2.
CHECK “B/FUEL SCHDL”
Select “B/FUEL SCHDL” in “SPEC” of “DATA MONITOR” mode, and make sure that the indication is within the
SP value.
Is the measurement value within the SP value?
YES
>> GO TO 4.
NO
>> More than the SP value: GO TO 19.
3.
CHECK “B/FUEL SCHDL”
Select “B/FUEL SCHDL” in “SPEC” of “DATA MONITOR” mode, and make sure that the indication is within the
SP value.
Is the measurement value within the SP value?
YES
>> GO TO 6.
NO-1
>> More than the SP value: GO TO 6.
NO-2
>> Less than the SP value: GO TO 25.
4.
CHECK “A/F ALPHA-B1”
1.
Stop the engine.
2.
Disconnect PCV hose, and then plug it.
3.
Start engine.
4.
Select “A/F ALPHA-B1” in “SPEC” of “DATA MONITOR” mode, and make sure that the indication is within
the SP value.
Is the measurement value within the SP value?
YES
>> GO TO 5.
NO
>> GO TO 6.
5.
CHANGE ENGINE OIL
1.
Stop the engine.
2.
Change engine oil.
NOTE:
This symptom may occur when a large amount of gasoline is mixed with engine oil because of driving
conditions (such as when engine oil temperature does not rise enough since a journey distance is too
short during winter). The symptom will not be detected after changing engine oil or changing driving con-
dition.
>> INSPECTION END
6.
CHECK FUEL PRESSURE
Check fuel pressure. Refer to
Is the inspection result normal?
YES
>> GO TO 9.
NO-1
>> Fuel pressure is too high: Replace fuel level sensor unit, fuel filter and fuel pump assembly (refer
to
), and then GO TO 8.
NO-2
>> Fuel pressure is too low: GO TO 7.
7.
DETECT MALFUNCTIONING PART
Check fuel hoses and fuel tubes for clogging
Is the inspection result normal?
YES
>> Replace Replace fuel level sensor unit, fuel filter and fuel pump assembly (refer to
), and then GO TO 8.
NO
>> Repair or replace, and then GO TO 8.
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
EC-119
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 1)]
C
D
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EC
N
P
O
8.
CHECK “A/F ALPHA-B1”
1.
Start engine.
2.
Select “A/F ALPHA-B1” in “SPEC” of “DATA MONITOR” mode, and make sure that the indication is within
the SP value.
Is the measurement value within the SP value?
YES
>> INSPECTION END
NO
>> GO TO 9.
9.
PERFORM POWER BALANCE TEST
1.
Perform “POWER BALANCE” in “ACTIVE TEST” mode.
2.
Make sure that the each cylinder produces a momentary engine speed drop.
Is the inspection result normal?
YES
>> GO TO 12.
NO
>> GO TO 10.
10.
DETECT MALFUNCTIONING PART
Check the following.
1.
Ignition coil and its circuit (Refer to
EC-294, "Component Inspection (Ignition Coil with Power Transistor)"
.)
2.
Fuel injector and its circuit (Refer to
EC-286, "Component Inspection"
.)
3.
Intake air leakage
4.
Low compression pressure (Refer to
Is the inspection result normal?
YES
>> Replace fuel injector (refer to
), and then GO TO 11.
NO
>> Repair or replace malfunctioning part, and then GO TO 11.
11.
CHECK “A/F ALPHA-B1”
1.
Start engine.
2.
Select “A/F ALPHA-B1” in “SPEC” of “DATA MONITOR” mode, and make sure that the indication is within
the SP value.
Is the measurement value within the SP value?
YES
>> INSPECTION END
NO
>> GO TO 12.
12.
CHECK A/F SENSOR 1 FUNCTION
Perform all DTC CONFIRMATION PROCEDURE related with A/F sensor 1.
• For DTC P0130, refer to
• For DTC P0131, refer to
• For DTC P0132, refer to
• For DTC P0133, refer to
Is any DTC detected?
YES
>> GO TO 15.
NO
>> GO TO 13.
13.
CHECK A/F SENSOR 1 CIRCUIT
Perform DIAGNOSTIC PROCEDURE according to corresponding DTC.
>> GO TO 14.
14.
CHECK “A/F ALPHA-B1”
1.
Start engine.
2.
Select “A/F ALPHA-B1” in “SPEC” of “DATA MONITOR” mode, and make sure that the indication is within
the SP value.
Is the measurement value within the SP value?
YES
>> INSPECTION END
NO
>> GO TO 15.
EC-120
< DTC/CIRCUIT DIAGNOSIS >
[HR12DE (TYPE 1)]
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
15.
DISCONNECT AND RECONNECT ECM HARNESS CONNECTOR
1.
Stop the engine.
2.
Disconnect ECM harness connector.
3.
Check pin terminal and connector for damage, and then reconnect it.
>> GO TO 16.
16.
CHECK “A/F ALPHA-B1”
1.
Start engine.
2.
Select “A/F ALPHA-B1” in “SPEC” of “DATA MONITOR” mode, and make sure that the indication is within
the SP value.
Is the measurement value within the SP value?
YES
>> INSPECTION END
NO
>> Detect malfunctioning part according to
.
17.
CHECK “B/FUEL SCHDL”
Select “B/FUEL SCHDL” in “SPEC” of “DATA MONITOR” mode, and make sure that the indication is within the
SP value.
Is the measurement value within the SP value?
YES
>> INSPECTION END
NO-1
>> More than the SP value: GO TO 18.
NO-2
>> Less than the SP value: GO TO 25.
18.
DETECT MALFUNCTIONING PART
1.
Check for the cause of large engine friction. Refer to the following.
-
Engine oil level is too high
-
Engine oil viscosity
-
Belt tension of power steering, alternator, A/C compressor, etc. is excessive
-
Noise from engine
-
Noise from transmission, etc.
2.
Check for the cause of insufficient combustion. Refer to the following.
-
Valve clearance malfunction
-
Intake valve timing control function malfunction
-
Camshaft sprocket installation malfunction, etc.
>> Repair or replace malfunctioning part, and then GO TO 30.
19.
CHECK INTAKE SYSTEM
Check for the cause of uneven air flow through mass air flow sensor. Refer to the following.
• Crushed air ducts
• Malfunctioning seal of air cleaner element
• Uneven dirt of air cleaner element
• Improper specification of intake air system
Is the inspection result normal?
YES
>> GO TO 21.
NO
>> Repair or replace malfunctioning part, and then GO TO 20.
20.
CHECK “A/F ALPHA-B1”, AND “B/FUEL SCHDL”
Select “A/F ALPHA-B1” and “B/FUEL SCHDL” in “SPEC” of “DATA MONITOR” mode, and make sure that
each indication is within the SP value.
Is the measurement value within the SP value?
YES
>> INSPECTION END
NO
>> “B/FUEL SCHDL” is more, “A/F ALPHA-B1” is less than the SP value: GO TO 21.
21.
DISCONNECT AND RECONNECT MASS AIR FLOW SENSOR HARNESS CONNECTOR
1.
Stop the engine.
2.
Disconnect mass air flow sensor harness connector.
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