2000 MITSUBISHI MONTERO compression ratio

GDI -Troubleshooting 13A-178
Inspection procedure 10
When the engine becomes hot, it stalls at idling. (Die
out)
Probable cause
In such cases as the above, the cause is probably that ignition system, air/fuel
mixture, electronic-controlled throttle valve system, compression pressure is
defective. In addition, if the engine suddenlystalls, the cause may also be a
defective connector contact.DMalfunction of the ignition system
DMalfunction of the air/fuel ratio control system
DMalfunction of the electronic-controlled throttle
valve system
DMalfunction of the throttle body
DImproper connector contact
DDrawing air into intake system
OK
Check that air is sucked in the air intake system.
DBroken intake manifoldgasket
DDamaged vacuum hose
DDamaged air intake hoseOK
To the nextpage
OK
MUT-
IIData list
11 Oxygen sensor (Refer to P.13A-198.)
OK
0 - 400 mV and 600 - 1,000 mV alternates when
the engine is idling(wait for 2 minutes after the en-
gine is started).NGMeasure fuel high-pressure between the fuel pump (high
pressure) and injector. (Refer to P.13A-222.)
OK
MUT-
IIData list
11 Oxygen sensor (Refer to P.13A-198.)
OK
600 - 1,000 mV when theengine is suddenlyraced.NGCheck Oxygen sensor system
(Refer to P.13A-131, code No.11.)
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
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.)
YES
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
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.)
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.
OK
Does theenginestall easilyagain?NOWhile carrying out an intermittent malfunction simulation test
(Refer to GROUP 00 - Points to Note for Intermittent
Malfunctions.), check for sudden changes in the signals shown
below.
DCrankanglesensor signal
DInjector activating signal
DLow pressure fuelpumpdrive signal
DAir flow sensor
DPrimary ignition signal
DEngine-A/T-ECU power supply voltage


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GDI -Troubleshooting 13A-182
Inspection procedure 13
Hesitation, sag, stumble, poor acceleration or surge
Probable cause
The cause is probably a malfunction of the ignition system, air/fuel ratio control
system, electronic controlled throttle valve system, compression pressure, etc.DMalfunction of the ignition system
DMalfunction of the air/fuel ratio control system
DMalfunction of the electronic-controlled throttle
valve system
DImproper compression pressure
DAir stuck in the air intake system
NO
NG
Check that the crankanglesensor andtiming beltcover are
properly installed.
OK
Check that air is sucked in the air intake system.
DBroken intake manifold gasket
DDamaged vacuum hose
DDamaged air intake hose
OK
To the nextpage
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
11 Oxygen sensor (Refer to P.13A-198.)
OK:
0 - 400 mV and 600 - 1,000 mV alternates when
the engine is idling(wait for 2 minutes after the en-
gine is started).NGMeasure fuel high-pressure between the fuel pump (high
pressure) and injector. (Refer to P.13A-222.)
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-
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
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
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
26 Acceleratorpedal positionswitch
(Refer to P.13A-198.)NGCheck the acceleratorpedal positionswitch system.
(Refer to P.13A-192, Inspection procedure 28.)
Check the ignition timing. (Refer to GROUP11A - Engine
Adjustment)
MUT-
IISelf-Diag Code
Is a diagnosis code displayed?YESRefer to P.13A-130, INSPECTION CHART FOR DIAGNOSIS
CODES.
OK


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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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BASIC BRAKE SYSTEM -General Information35A-3
GENERAL INFORMATION
The brake system offers high dependability and durability along with improved braking performance and
brake sensitivity.
ItemsSpecifications
Hydraulic brake boosterMaster cylinder typeSingle type (with center valve)
(HBB) Master cylinder I.D. mm22.22
Boosting ratio5.4
Master cylinderTypeTandem type
I.D. mm23.81
Brake boosterTypeVacuum type, tandem
Effective dia. of power cylinder mm216 + 217
Boosting ratio6.5
Rear wheel hydraulic pressure control type Electronic brake-force distribution (EBD)
Load sensing proportioning
valveDecompression ratio0.3
Front brakesTypeFloating caliper, 2 piston, ventilated disc
Disc effective dia.¢
thickness mm241¢
26
Wheel cylinder I.D. mm45.4
Pad thickness mm10.0
Clearance adjustmentAutomatic
Rear brakesTypeFloating caliper, 1 piston, ventilated disc
Disc effective dia.¢
thickness mm256¢
22
Wheel cylinder I.D. mm44.5
Pad thickness mm10.0
Clearance adjustmentAutomatic
Brake fluidDOT3 or DOT4


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