oil pressure MITSUBISHI MONTERO 2000 Service Owner's Manual

GDI -Troubleshooting 13A-172
OK
Check the following items in that order.
DCheck the sparkplug
DCheck the compression pressure
DCheck if foreign materials (water, alcohol, etc.) got into
fuel.
OK
Clamp the leads of the ignition coil No.1 terminal with atiming
light pick-up in order. Does thetiming lightflash when the
engine iscranked?NOCheck the ignition coil (built-in power transistor) system (Refer
to P.13A-148, code No.44.)
From the previouspage
OK
Check the trouble symptoms.
OK
Check ignition coil spark for each cylinder.
1. Remove the ignition coil.
2. Install a new sparkplug to the removed ignitioncoil.
3. Disconnect the injector intermediate connector.
Caution
Never touch the connector terminal as approx. 100 V is
applied to the injector, or you are seriously injured.
4. Earth the sparkplug electrodesecurely.
5. Check that the sparkplug igniteswhen theengine is
cranked.NGReplace the ignition coil.
YES
Check the ignitiontimingwhen cranking.
OK:
approx. 5_BTDCNGCheck that the crankanglesensor andtiming beltcover are
properly installed.
Replace the injector.NG
Inspection procedure 6
Initial combustion but no complete combustion (starting
impossible), long time to start (hard starting)
Probable cause
In such cases as the above, the cause is probably that the spark plugs are
generating sparks by the spark are weak, or the initial mixture is not appropriate.DMalfunction of fuel supply system
DMalfunction of of fuel pressure control solenoid
valve
DMalfunction of the ignition system
DMalfunction of the electronic-controlled throttle
valve system
DMalfunction of the engine-A/T-ECU
OK
MUT-
IIData list
21 Engine coolant temperature sensor (Refer to P.13A-198.)NGCheck theengine coolant temperaturesensor system (Refer
to P.13A-138, code No.21.)
OK
MUT-
IISelf-Diag Code
Is a diagnosis code set?YESRefer to P.13A-130, INSPECTION CHART FOR DIAGNOSIS
CODES.
Check the battery voltage when cranking.
OK:
8 V or higherNGCheck the battery.
NO
MUT-
IIActuator Test
07 Fuel pump(low pressure) (Refer to P.13A-203.)NGCheck fuelpumpsystem (low-pressure)
(Refer to P.13A-193, Inspection procedure 29.)
OK
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GDI -Troubleshooting 13A-173
NGReplace the injector.Check the trouble symptoms.
OK
Check the following items in that order.
DCheck the sparkplug
DCheck the compression pressure
DCheck the fuel lines for clogging.
DCheck if foreign materials (water, alcohol, etc.) got into
fuel.
OK
Check ignition coil spark for each cylinder.
1. Remove the ignition coil.
2. Install a new sparkplug to the removed ignitioncoil.
Caution
Never touch the connector terminal as approx. 100 V is
applied to the injector, or you are seriously injured.
3. Disconnect the injector intermediate connector.
4. Earth the sparkplug electrodesecurely.
5. Check that the sparkplug igniteswhen theengine is
cranked.NGReplace the ignition coil.
Check the ignitiontimingwhen cranking.
OK:
Approx. 5_BTDCNGCheck that the crankanglesensor andtiming beltcover are
installed properly.
NO
Adjust the throttle position sensor (Refer to P.13A-220.)
OK
Is starting good if the engine iscranked with the accelerator
pedalslightly depressed?YESDClean the throttle valve area. (Refer to P.13A-220)
DAdjust the throttle position sensor
(Refer to P.13A-220.)
OK
MUT-
IIData list
79 Throttle position sensor (1st channel) (Refer to P.13A-198.)NGCheck the throttle valve position feedback system.
(Refer to P.13A-162, code No.92.)
OK
Check fuel leakage. (Refer to P.13A-225.)NGRepair
OK
MUT-
IIActuator Test
74 Fuel pressure sensor (Refer to P.13A-203.)NGCheck abnormal fuel pressure.
(Refer to P.13A-151, code No.56.)
OK
MUT-
IIData list
18 Cranking signal (Refer to P.13A-198.)NGCheck the ignition switch-ST system and inhibitor switch
(Refer to 13A-191, Inspection procedure 27.)
From the previouspage


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GDI -Troubleshooting 13A-175
OK
NG
Air is sucked in the air intake system, or EGR gas leaks.
DBroken intake manifold gasket
DDamaged air intake hose
DDamaged vacuum hose
DFaulty EGR valve seat
Check the trouble symptoms.
OK
Check the following items in that order.
DCheck the sparkplug
DCheck the exhaust gas emission control system
DCheck the EGR control system
DCheck the compression pressure
DCheck if foreign materials (water, kerosine,etc.) got into
fuel.
OK
Check ignition coil spark for each cylinder.
1. Remove the ignition coil.
2. Install a new sparkplug to the removed ignitioncoil.
3. Disconnect the injector intermediate connector.
Caution
Never touch the connector terminal as approx. 100 V is
applied to the injector, or you are seriously injured.
4. Earth the sparkplug electrodesecurely.
5. Check that the sparkplug igniteswhen theengine is
cranked.NGReplace the ignition coil.
Clean around the throttle valve. (Refer to P.13A-220.)
OK
Check the ignition timing. (Refer to GROUP 11A - Engine
Adjustment.)NGCheck that the crankanglesensor andtiming beltcover are
properly installed.
OK
MUT-
IIData list
68 EGR valve (Refer to P.13A-198.)NGCheck the EGR valve system (Refer to P.13A-196, Inspection
procedure 35.)
OK
MUT-
IIData list
14 Throttle position sensor (2nd channel)
After warming-up, let theengine run at idlingwith no load.
OK:
When idling, 3,900 - 4,800 mVNGDClean around the throttle valve. (Refer to P.13A-220)
DAdjust the throttle position sensor (Refer to P.13A-220.)
OK
MUT-
IIData list
67 Stoplampswitch (Refer to P.13A-198.)NGCheck the stoplampswitch system
(Refer to P.13A-195, Inspection procedure 32.)
OK
MUT-
IIData list
28 A/C switch (Refer to P.13A-198.)NGCheck the A/C switch and A/C relay system
(Refer to P.13A-194, Inspection procedure 31.)
OK
MUT-
IIData list
27 Power steering oil pressure switch (Refer to P.13A-198.)NGCheck the power steering oil pressure switch system (Refer to
P.13A-194, Inspection procedure 30.)
From the previouspage
OK
MUT-
IIData list
31 Small lampswitch (Refer to P.13A-198.)NGCheck the smalllampswitch system
(Refer to P.13A-195, Inspection procedure 33.)


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GDI -Troubleshooting 13A-177
Inspection procedure 9
When the engine is cold, it stalls at idling. (Die out)
Probable cause
In such cases as the above, the cause is probably that the air/fuel mixture is
inappropriate when theengine iscold, or that the intake air volume is
insufficient.DMalfunction of the electronic-controlled throttle
valve system
DMalfunction of the throttle body
OK
NG
Replace the injector.
Check the trouble symptoms.
Check the following items in that order.
DCheck the sparkplug
DCheck the compression pressure
DCheck theengine oilviscosity.
OK
Check ignition coil spark for each cylinder.
1. Remove the ignition coil.
2. Install a new sparkplug to the removed ignitioncoil.
3. Disconnect the injector intermediate connector.
Caution
Never touch the connector terminal as approx. 100 V is
applied to the injector, or you are seriously injured.
4. Earth the sparkplug electrodesecurely.
5. Check that the sparkplug igniteswhen theengine is
cranked.NGReplace the ignition coil.
OK
Check the ignition timing. (Refer to GROUP 11A - Engine
Adjustment.)NGCheck that the crankanglesensor andtiming beltcover are
properly installed.
NO
Measure fuel high-pressure between the fuel pump (high
pressure) and injector. (Refer to P.13A-222.)
OK
Does theenginestall right after the acceleratorpedal is
released?YESDClean around the throttle valve. (Refer to P.13A-220.)
DAdjust the throttle position sensor. (Refer to P.13A-220.)
OK
MUT-
IIData list
68 EGR valve (Refer to P.13A-198.)NGCheck the EGR valve system.
(Refer to P.13A-196, Inspection procedure 35.)
OK
MUT-
IIData list
21 Engine coolant temperature sensor (Refer to P.13A-198.)NGCheck theengine coolant temperaturesensor system.
(Refer to P.13A-138, code No.21.)
OK
MUT-
IIData list
26 Acceleratorpedal positionswitch
(Refer to P.13A-198.)NGCheck the acceleratorpedal positionswitch system.
(Refer to P.13A-192, Inspection procedure 28.)
NO
MUT-
IIData list
14 Throttle position sensor (2nd channel) (Refer to P.13A-198.)NGCheck the throttle valve position feedback system.
(Refer to P.13A-162, code No.92.)
NO
Is engine-idling stable after the warming-up?YESCheck the unstableidling (rough, hunting).
(Refer to P.13A-174, Inspection procedure 7.)
NO
MUT-
IISelf-Diag Code
Is a diagnosis code set?YESRefer to P.13A-130, INSPECTION CHART FOR DIAGNOSIS
CODES.
Has the batterybeen disconnectedrecently?YESAfter warming-up, let theengine run at idling for 10 minutes.


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GDI -Troubleshooting 13A-179
OK
Check the following items in that order.
DCheck the sparkplug
DCheck the compression pressure
DCheck if foreign materials (water, kerosine,etc.) got into
fuel.
OK
MUT-
IIData list
68 EGR valve (Refer to P.13A-198.)NGCheck the EGR valve system (Refer to P.13A-196, Inspection
procedure 35.)
OK
MUT-
IIData list
28 A/C switch (Refer to P.13A-198.)NGCheck the A/C switch and A/C relay system
(Refer to P.13A-194, Inspection procedure 31.)
OK
MUT-
IIData list
27 Power steering oil pressure switch (Refer to P.13A-198.)NGCheck the power steering oil pressure switch system (Refer to
P.13A-194, Inspection procedure30.)
From the previouspage
NO
Check the ignition timing. (Refer to GROUP 11A - Engine
Adjustment.)OKCheck that the crankanglesensor andtiming beltcover are
properly installed.
NG
Check ignition coil spark for each cylinder.
1. Remove the ignition coil.
2. Install a new sparkplug to the removed ignitioncoil.
3. Disconnect the injector intermediate connector.
Caution
Never touch the connector terminal as approx. 100 V is
applied to the injector, or you are seriously injured.
4. Earth the sparkplug electrodesecurely.
5. Check that the sparkplug igniteswhen theengine is
cranked.NGReplace the ignition coil.
OK
MUT-
IIData list
14 Throttle position sensor (2nd channel)
After warming-up, let theengine run at idlingwith no load.
OK:
3,900 - 4,800 mVNGDClean around the throttle valve. (Refer to P.13A-220)
DAdjust the throttle position sensor (Refer to P.13A-220.)
OK
MUT-
IIData list
34 Air flow sensor reset signal (Refer to P.13A-198.)NGCheck the air flow sensor system
(Refer to P.13A-133, code No.12.)
OK
Does theenginestall right after the acceleratorpedal is
released?YESClean around the throttle valve. (Refer to P.13A-220.)
OK
MUT-
IIData list
31 Small lampswitch (Refer to P.13A-198.)NGCheck the smalllampswitch system (Refer to P.13A-195,
Inspection procedure 33.)


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GDI -Troubleshooting 13A-183
OK
Check the following items in that order.
DCheck the sparkplug
DCheck the EGR control system
DCheck the compression pressure
DCheck the fuel filter or fuelline for clogging
OK
Check ignition coil spark for each cylinder.
1. Remove the ignition coil.
2. Install a new sparkplug to the removed ignitioncoil.
3. Disconnect the injector intermediate connector.
Caution
Never touch the connector terminal as approx. 100 V is
applied to the injector, or you are seriously injured.
4. Earth the sparkplug electrodesecurely.
5. Check that the sparkplug igniteswhen theengine is
cranked.NGReplace the ignition coil.
OK
Measure fuel high-pressure between the fuel pump (high
pressure) and injector. (Refer to P.13A-222.)NGRepair
From the previouspage
Check the trouble symptoms.Replace the injector. NG
OK
MUT-
IIActuator Test
08 Purge control solenoid valve
(Refer to P.13A-203.)NGCheck the purge control solenoid valve system
(Refer to P.13A-197, Inspection procedure 36.)
Inspection procedure 14
The feeling of impact or vibration when accelerating
Probable cause
In cases such as the above, the cause is probably that there is an ignition leak
accompanying the increase in the sparkplug demand voltage during
acceleration.DMalfunction of the ignition system
Replace the ignition coil.
NG
OK
Check the trouble symptoms.
OK
Check the sparkplugNGReplace
NO
MUT-
IIData list
79 Throttle position sensor (1st channel) (Refer to P.13A-198.)NGCheck the throttle valve position feedback system
(Refer to P.13A-162, code No.92.)
MUT-
IISelf-Diag Code
Is a diagnosis code displayed?YESRefer to P.13A-130, INSPECTION CHART FOR DIAGNOSIS
CODES.


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GDI -Troubleshooting 13A-185
Inspection procedure 18
Too high CO and HC concentration when idling
Probable cause
Abnormal air-fuel ratio is suspected.DMalfunction of the air/fuel ratio control system
DDeteriorated catalyst
OK
To the nextpage
NG
Replace the ignition coil.
OK
Check ignition coil spark for each cylinder.
1. Remove the ignition coil.
2. Install a new sparkplug to the removed ignitioncoil.
3. Disconnect the injector intermediate connector.
Caution
Never touch the connector terminal as approx. 100 V is applied to the injector, or you are seriously injured.
4. Earth the sparkplug electrodesecurely.
5. Check that the sparkplug igniteswhen theengine iscranked.NG
NG
Measure fuel high -pressure between the fuelpump (high
pressure) and injector. (Refer to P.13A-223.)
Check the trouble symptoms.
OK
MUT-
IIData list
11 Oxygen sensor (Refer to P.13A-198.)
OK:
Repeat 0 - 400 mV and 600 - 1,000 mV alternately
during idling(wait for at least 2 minutes after the
enginestarted to run at idle).OKReplace the oxygen sensor.
OK
MUT-
IIData list
11 Oxygen sensor (Refer to P.13A-198.)
OK:
600 - 1,000 mV when theengine is suddenlyracedNGCheck the oxygen sensor system. (Refer to P.13A-131, code
No.11.)
OK
MUT-
IIActuator Test
08 Purge control solenoid valve
(Refer to P.13A-203.)NGCheck the purge control solenoid valve system
(Refer to P.13A-197, Inspection procedure 36.)
OK
MUT-
IIData list
68 EGR valve (Refer to P.13A-198.)NGCheck the EGR valve system (Refer to P.13A-196, Inspection
procedure 35.)
OK
MUT-
IIData list
25 Barometric pressure sensor (Refer to P.13A-198.)NGCheck the barometric pressure sensor system (Refer to
P.13A-145, code No.25.)
OK
MUT-
IIData list
13 Intake air temperature sensor (Refer to P.13A-198.)NGCheck the intake air temperature sensor system (Refer to
P.13A-135, code No.13.)
OK
MUT-
IIData list
21 Engine coolant temperature sensor (Refer to P.13A-198.)NGCheck theengine coolant temperaturesensor system (Refer
to P.13A-138, code No.21.)
NO
Check the ignition timing. (Refer to GROUP 11A - Engine
Adjustment.)NGCheck that the crankanglesensor andtiming beltcover are
properly installed.
MUT-
IISelf-Diag Code
Are diagnosis codes displayed?YESRefer to P.13A-130, INSPECTION CHART FOR DIAGNOSIS
CODES.


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GDI -Fuel Pump (High Pressure)13A-241
"
CA
O-RING/FUEL PRESSURE HOSE INSTALLATION
1. Apply a small amount of fresh engine oil to the O-ring.
Caution
Take care not to let any of the engine oil get inside
the fuel pump (high pressure) or the delivery pipe
assembly.
2. While being careful not to damage the O-ring, turn the
fuel pressure hose to the left and right and connect it
to the delivery pipe assembly. After connecting, check
that the fuel injector turns smoothly.
3. If the fuel pressure hose does not turn smoothly, the cause
may be that the O-ring is getting caught. Remove the fuel
pressure hose, check the O-ring for damage and
re-connect the fuel pressure hose to the delivery pipe
assembly and then re-check.


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DIESEL FUEL <4M4> -Troubleshooting13C-26
Inspection procedure 5
No initial combustion (unable to start)
Probable cause
Probable causes can be found in troubles with control system, injectionpump,
glow system, and power supply system.DControl system inoperative
DInjection pump inoperative
DGlow system inoperative
DEngine-ECU inoperative
NG
Repair
MUT-
IISelf-Diag code
Is a diagnosis code output?YESInspection chart for diagnosis codes (Refer to P.13C-7.)
NO
Conduct MUT-IIData list check and an actuator test. (Refer
to P.13C-30, 37.)OKCheck the following items in order:
DGlow plug, glowplugrelay
DBattery
DInjection nozzle
DInjection pump
DCompression pressure
DExistence of mixing foreign objects (water, kerosene) with
the fuel
Inspection procedure 6
Starting performance is bad when the engine is cold
(unable to start)
Probable cause
Probable causes can be found in troubles with control system, injectionpump,
fuel system, intake system, and glow system.DControl system inoperative
DInjection pump inoperative
DFuel system inoperative
DIntake system inoperative
DGlow system inoperative
DEngine-ECU inoperative
NG
Repair
MUT-
IISelf-Diag code
Is a diagnosis code output?YESInspection chart for diagnosis codes (Refer to P.13C-7.)
NO
Conduct MUT-IIData list check and an actuator test. (Refer
to P.13C-32, 37)OKInspect the following items in order:
DGlow plug, glowplugrelay
DInjection nozzle, fuel filter
DThrottle body assembly
DExistence of starter switch signal input
DEngine oil
DInjection pump
DExistence of mixing foreign objects (water, kerosene) with
the fuel
Inspection procedure 7
Starting performance is bad regardless of whether the
engine is hot or cold (unable to start)
Probable cause
Probable causes can be found in troubles with control system, injectionpump,
fuel system, and intake system.DControl system inoperative
DInjection pump inoperative
DFuel system inoperative
DIntake system inoperative
DEngine-ECU inoperative
NG
Repair
MUT-
IISelf-Diag code
Is a diagnosis code output?YESInspection chart for diagnosis codes (Refer to P.13C-7.)
NO
Conduct MUT-IIData list check and an actuator test. (Refer
to P.13C-32, 37.)OKInspect the following items in order:
DInjection nozzle, fuel filter
DThrottle body
DCompression pressure
DInjection pump
DExistence of mixing foreign objects (water, kerosene) with
the fuel


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DIESEL FUEL <4D5-stepIII>-Troubleshooting13E-31
INSPECTION PROCEDURE 5
No initial combustion (unable to start)
Probable cause
Probable causes can be found in troubles with control system, injection pump,
glow system, and power supply system.DControl system inoperative
DInjection pump inoperative
DIntake system inoperative
DGlow system inoperative
DEngine-ECU inoperative
NG
Repair
MUT-IISelf-Diag code
Is a diagnosis code output?YESInspection chart for diagnosis codes (Refer to P.13E-8.)
NO
Conduct MUT-IIData list check and an actuator test.
(Refer to P.13E-40, 44.)OKCheck the following items in order:
DGlow plug, glow plug relay
DBattery
DInjection nozzle
DThrottle body assembly
DInjection pump
DCompression pressure
DExistence of mixing foreign objects (water, kerosene) with
the fuel
INSPECTION PROCEDURE 6
Starting performance is bad when the engine is cold
(unable to start)
Probable cause
Probable causes can be found in troubles with control system, injection pump,
fuel system, intake system, and glow system.DControl system inoperative
DInjection pump inoperative
DFuel system inoperative
DIntake system inoperative
DGlow system inoperative
DEngine-ECU inoperative
NG
Repair
MUT-IISelf-Diag code
Is a diagnosis code output?YESInspection chart for diagnosis codes (Refer to P.13E-8.)
NO
Conduct MUT-IIData list check and an actuator test.
(Refer to P.13E-40, 44.)OKInspect the following items in order:
DGlow plug, glow plug relay
DInjection nozzle, fuel filter
DThrottle body assembly
DExistence of starter switch signal input
DEngine oil
DInjection pump
DExistence of mixing foreign objects (water, kerosene) with
the fuel


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