Mitsubishi Outlander (2003+). Manual — part 146
ENGINE CONTROL
ENGINE AND EMISSION CONTROL
17-3
ENGINE CONTROL
GENERAL INFORMATION
M1171000100329
A cable-type accelerator mechanical
suspended-type pedal has been adopted.
SERVICE SPECIFICATIONS
M1171000300099
TROUBLESHOOTING
INTRODUCTION TO ENGINE CONTROL
SYSTEM DIAGNOSIS
M1171002000287
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
M1171002100314
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
M1171002200322
SYMPTOM PROCEDURES
INSPECTION PROCEDURE 1: Throttle Valve will not Fully Open or Close <4G63>
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 (Refer to
). Then go to Step 3 .
STEP 2. Check the throttle valve.
Check that the throttle lever of the throttle body
assembly moves smoothly by moving it by hand.
Q: Does the throttle lever of the throttle body
assembly move smoothly?
YES :
Go to Step 3 .
NO :
Cleaning the throttle body (Refer to GROUP
13A, On-vehicle Service
), or
replace the throttle body assembly (Refer to
GROUP 13A, Throttle Body
Then go to Step 3 .
STEP 3. Retest the system.
Q: Does the throttle valve fully open and close?
YES :
The procedure is complete.
NO :
Return to Step 1 .
Items
Standard value
Accelerator cable play mm
1.0
−
2.0
Engine idle speed r/min
4G63
750
±
50
4G69
700
±
100
SYMPTOM
INSPECTION PROCEDURE
REFERENCE PAGE
Throttle valve will not fully open or close <4G63> 1
Throttle valve will not fully open or close <4G69> 2
Accelerator pedal operation is not smooth (over
acceleration)
3
ENGINE CONTROL
ENGINE AND EMISSION CONTROL
17-4
INSPECTION PROCEDURE 2: Throttle Valve will not Fully Open or Close <4G69>
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 (Refer to
). Then go to Step 5 .
STEP 2. Check the accelerator pedal position
sensor assembly.
Check that the lever of the accelerator pedal position
sensor assembly moves smoothly by moving it by
hand.
Q: Dose the lever of the accelerator pedal position
sensor assembly move smoothly?
YES :
Go to Step 3 .
NO :
Replace the accelerator pedal position
sensor assembly (Refer to
). Then go
to Step 5 .
STEP 3. Check the accelerator pedal position
sensor assembly.
Refer to GROUP 13B, On-vehicle Service
Q: Is the accelerator pedal position sensor assembly
normally?
YES :
Go to Step 4 .
NO :
Replace the accelerator pedal position
sensor assembly (Refer to
). Then go
to Step 5 .
STEP 4. Check the Throttle valve (Throttle valve
control servo).
Refer to GROUP 13B, On-vehicle Service
Q: Is the throttle valve control servo normally?
YES :
Go to Step 5 .
NO :
Cleaning the throttle body (Refer to GROUP
13B, On-vehicle Service
), or
replace the throttle body assembly (Refer to
GROUP 13B, Throttle Body
Then go to Step 5 .
STEP 5. Retest the system.
Q: Does the throttle valve fully open and close?
YES :
The procedure is complete.
NO :
Return to Step 1 .
INSPECTION PROCEDURE 3: Accelerator Pedal Operation is not Smooth (Over Acceleration)
DIAGNOSIS
STEP 1. Check the accelerator pedal.
Q: Is the accelerator pedal loose?
YES :
Tighten the fasteners. 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 :
Correct the cable routing 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 :
Go to Step 4 .
NO :
Refill or replace the lubricant. Then go to
Step 4 .
STEP 4. Retest the system.
Q: Does the accelerator pedal work normally?
YES :
The procedure is complete.
NO :
Return to Step 1 .
ENGINE CONTROL
ENGINE AND EMISSION CONTROL
17-5
ON-VEHICLE SERVICE
ACCELERATOR CABLE CHECK AND
ADJUSTMENT <4G63>
M1171000900347
1. Turn A/C and lights OFF. Inspect and adjust at no
load.
2. Warm engine until stabilized at idle.
3. Confirm idle speed is at standard value.
Standard value: 750
±
50 r/min
4. Stop engine. [ignition switch: LOCK (OFF)
position].
5. Confirm there are no sharp bends in the
accelerator cable.
6. Check the inner cable for correct slack.
Standard value: 1.0
−
2.0 mm
7. If there is too much slack or no slack, adjust play
by the following procedures.
(1) Loosen the adjusting bolts to release the
cable.
(2) Move the plate until the inner cable play is at
the standard value, and then tighten the
adjusting bolts.
(3) After adjusting, check that the throttle lever is
touching the stopper.
ACCELERATOR CABLE CHECK AND
ADJUSTMENT <4G69>
M1171000900358
1. Turn A/C and lights OFF. Inspect and adjust at no
load.
2. Warm engine until stabilized at idle.
3. Confirm idle speed is at standard value.
Standard value: 700
±
100 r/min
4. Stop engine. [ignition switch: LOCK (OFF)
position].
5. Confirm there are no sharp bends in the
accelerator cable.
6. Check the inner cable for correct slack.
Standard value: 1.0
−
2.0 mm
7. If there is too much slack or no slack, adjust play
by the following procedures.
(1) Loosen the lock nut and adjusting nut to
release the cable.
(2) Tighten the adjusting nut until the inner cable
play is at the standard value, and then tighten
the lock nut.
AC212490
Adjusting bolt
Plate
AC
Accelerator cable
AC304671
Adjusting nut
AE
Accelerator cable
Lock nut
Accelerator pedal
position sensor
ENGINE CONTROL
ENGINE AND EMISSION CONTROL
17-6
ACCELERATOR CABLE AND PEDAL
<4G63>
REMOVAL AND INSTALLATION
M1171001200404
INSTALLATION SERVICE POINT
>>A<< PEDAL PAD INSTALLATION
CAUTION
To prevent damages to the Pedal Pad, warm the
thumb area of the Pedal Pad with a dryer, etc.
prior to assembling it.
NOTE: If it is difficult to assemble, apply soapy water
to the thumb area to enhance the assembling
process.
Post-installation Operation
Adjusting the Accelerator Cable (Refer to
).
AC309483AB
1
3
2
5.0 ± 1.0 N·m
12 ± 2 N·m
N
4
5
7
8
10
9
7
11
N
12
6
13
Accelerator cable assembly
removal steps
1. Inner cable connection (Accelerator
pedal side)
2. Inner cable connection (Throttle body
side)
3. Accelerator cable assembly
Accelerator pedal assembly
removal steps
1. Inner cable connection (Accelerator
pedal side)
4. Accelerator pedal assembly
5. Push-on spring nut
6. Accelerator arm and accelerator
pedal pad assembly
7. Bushing
8. Spring
9. Stopper
10. Accelerator pedal bracket
11. Accelerator arm
>>A<<
12. Accelerator pedal pad
13. Accelerator pedal stopper
Accelerator pedal assembly
removal steps (Continued)
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