Mitsubishi Montero Sport (2004+). Manual - part 102

 

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Mitsubishi Montero Sport (2004+). Manual - part 102

 

 

ENGINE CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-3

ENGINE CONTROL

GENERAL DESCRIPTION

M1171000100200

A cable-type accelerator mechanical sus-
pended-type pedal has been adopted.

ENGINE CONTROL SYSTEM DIAGNOSIS

INTRODUCTION TO ENGINE CONTROL SYSTEM DIAGNOSIS

M1171002000191

If there is a malfunction in the engine control system, 
the accelerator cable, accelerator pedal or throttle 
lever may be faulty.

ENGINE CONTROL SYSTEM DIAGNOSTIC TROUBLESHOOTING STRATEGY

M1171002100217

Use these steps to plan your diagnostic strategy.
If you follow them carefully, you will be sure that you 
have exhausted most of the possible ways to find an 
engine control system fault.
1. Gather information from the customer.

2. Verify that the condition described by the 

customer exists.

3. Find the malfunction by following the Symptom 

Chart.

4. Verify that the malfunction is eliminated.

SYMPTOM CHART

M1171002200225

SYMPTOM PROCEDURES

INSPECTION PROCEDURE 1: Throttle Valve will not Fully Open or Close.

DIAGNOSIS

STEP 1. Check the accelerator cable adjustment.

Q: Is the accelerator cable properly adjusted?

YES : 

Go to Step 2.

NO : 

Adjust the accelerator cable by referring to 

P.17-4

, and then go to Step 4.

STEP 2. Check the return spring.

Q: Is the return spring damaged or deformed?

YES : 

Go to Step 3.

NO : 

Replace, then go to Step 4.

STEP 3. Check the throttle lever.

Q: Is the throttle lever damaged or deformed?

YES : 

Replace, then go to Step 4.

NO : 

There is no action to be taken.

STEP 4. Retest the system.

Q: Does the throttle valve fully open and close?

YES : 

This procedure is complete.

NO : 

Return to Step 1.

SYMPTOM

INSPECTION PROCEDURE

REFERENCE PAGE

Throttle valve will not fully open or close.

1

P.17-3

Accelerator pedal operation is not smooth (over 
acceleration).

2

P.17-4

ENGINE CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-4

INSPECTION PROCEDURE 2: Accelerator Pedal Operation is not Smooth (Over Acceleration)

DIAGNOSIS

STEP 1. Check the accelerator pedal.

Q: Is the accelerator pedal loose? 

YES : 

Tighten, then go to Step 4.

NO : 

Go to Step 2.

STEP 2. Check the accelerator cable wiring.

Q: Is the accelerator cable routing bent sharply?

YES : 

Repair, then go to Step 4.

NO : 

Go to Step 3.

STEP 3. Check the accelerator cable lubricant.

Q: Is the accelerator cable lubricated sufficiently?

YES : 

There is no action to be taken.

NO : 

Refill or replace the lubricant, then go to 
Step 4.

STEP 4. Retest the system.

Q: Does the accelerator pedal work normally?

YES : 

This procedure is complete.

NO : 

Go to Step 1.

ON-VEHICLE SERVICE

ACCELERATOR CABLE CHECK AND 
ADJUSTMENT

M1171000900239

1. Turn off air conditioning and all lights. 

Inspect and adjust at no load.

2. Start engine and allow to idle unit it reaches normal 

operating temperature.

3. Confirm the idle speed is at standard value.

Standard value: 700 

± 100 r/min

4. Stop the engine [ignition switch the "LOCK" (OFF) position].
5. Confirm there are no sharp bends in the accelerator cable.
6. Check the inner cable for correct slack.

Standard value: 1 

 2 mm (0.04  0.08 inch)

7. If there is too much slack or no slack, adjust the cable as 

follows:

(1) Loosen the jam nut and fully close the throttle lever.
(2) Tighten the adjusting nut until just before the throttle lever 

starts to move.

(3) By loosening the adjusting nut one turn, the accelerator 

cable slack will be brought to the standard value.

(4) Fix the adjusting nut with the jam nut.
(5) After adjusting, check that the throttle lever is touching 

the stopper.

AC000042AB

ADJUSTING NUT

JAM NUT

ENGINE CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-5

ACCELERATOR CABLE AND PEDAL

REMOVAL AND INSTALLATION

M1171001200255

Post-installation Operation
Adjusting the Accelerator Cable (Refer to 

P.17-4

.)

AC004509

1

3

2

5

9 8

4

7

6

3

6

6

5

9

6.9 N·m
61 in-lb

AB

N

ACCELERATOR CABLE REMOVAL 
STEPS

1. INNER CABLE CONNECTION 

(THROTTLE BODY SIDE)

2. INNER CABLE CONNECTION 

(ACCELERATOR PEDAL SIDE)

3. ACCELERATOR CABLE

ACCELERATOR PEDAL REMOVAL 
STEPS

2. INNER CABLE CONNECTION 

(ACCELERATOR PEDAL SIDE)

4. COTTER PIN
5. SPRING
6. ACCELERATOR ARM
7. PEDAL PAD
8. STOPPER
9. BRACKET

AUTO-CRUISE CONTROL

TSB Revision

ENGINE AND EMISSION CONTROL

17-6

AUTO-CRUISE CONTROL

GENERAL DESCRIPTION

M1172000100203

By using the auto-cruise control, the driver can select 
and maintain a desired cruising speed [approxi-
mately 40 km/h (25 mph) or more] without depress-
ing the accelerator pedal.

The throttle body with integrated vacuum actuator is 
incorporated.

CONSTRUCTION DIAGRAM

AC004510

STOPLIGHT SWITCH

THROTTLE
BODY
ASSEMBLY

VACUUM PUMP
ASSEMBLY

PARK/NEUTRAL
POSITION SWITCH

AUTO-CRUISE
CONTROL-ECU

VEHICLE SPEED
SENSOR

MAIN SWITCH

AUTO-CRUISE
CONTROL SWITCH

AUTO-CRUISE CONTROL INDICATOR LIGHT

DATA LINK
CONNECTOR

AB

 

 

 

 

 

 

 

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