Mitsubishi 380. Manual — part 333
NOTES
17-1
GROUP 17
ENGINE AND
EMISSION
CONTROL
CONTENTS
ENGINE CONTROL . . . . . . . . . .
GENERAL DESCRIPTION . . . . . .
ENGINE CONTROL SYSTEM
DIAGNOSIS . . . . . . . . . . . . . . . . . .
INTRODUCTION . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING STRATEGY . . .
SYMPTOM CHART . . . . . . . . . . . . . . . .
SYMPTOM PROCEDURES . . . . . . . . .
SPECIAL TOOL . . . . . . . . . . . . . . .
ACCELERATOR PEDAL. . . . . . . .
REMOVAL AND INSTALLATION . . . . .
GENERAL DESCRIPTION . . . . . .
AUTO-CRUISE CONTROL SYSTEM
DIAGNOSIS . . . . . . . . . . . . . . . . . .
INTRODUCTION TO AUTO-CRUISE
CONTROL SYSTEM DIAGNOSIS . . . . .
DIAGNOSTIC TROUBLESHOOTING
STRATEGY . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSTIC FUNCTION . . . . . . . . . . .
DIAGNOSTIC TROUBLE CODE CHART
DIAGNOSTIC TROUBLE CODE
PROCEDURES . . . . . . . . . . . . . . . . . . .
SYMPTOM CHART . . . . . . . . . . . . . . . .
SYMPTOM PROCEDURES . . . . . . . . . .
DATA LIST REFERENCE TABLE . . . . .
ENGINE ECU TERMINAL VOLTAGE
REFERENCE CHART FOR AUTO-CRUISE
CONTROL SYSTEM OPERATION . . . .
SPECIAL TOOLS . . . . . . . . . . . . . .
ON-VEHICLE SERVICE . . . . . . . . .
AUTO-CRUISE CONTROL SWITCH
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . .
AUTO-CRUISE CONTROL SYSTEM
COMPONENT CHECK. . . . . . . . . . . . . .
AUTO-CRUISE CONTROL. . . . . . .
REMOVAL AND INSTALLATION. . . . . .
Continued on next page
ENGINE AND EMISSION CONTROL
17-2
EMISSION CONTROL . . . . . . . .
GENERAL DESCRIPTION . . . . . .
DIAGNOSIS . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS. . . . . . . . . . . . . .
VACUUM HOSES . . . . . . . . . . . . .
VACUUM HOSE ROUTING. . . . . . . . . .
VACUUM CIRCUIT DIAGRAM . . . . . . .
VACUUM HOSE INSTALLATION . . . . .
VACUUM HOSE CHECK. . . . . . . . . . . .
POSITIVE CRANKCASE VENTILATION
SYSTEM. . . . . . . . . . . . . . . . . . . . .
GENERAL DESCRIPTION (POSITIVE
CRANKCASE VENTILATION SYSTEM)
COMPONENT LOCATION . . . . . . . . . .
POSITIVE CRANKCASE VENTILATION
SYSTEM CHECK. . . . . . . . . . . . . . . . . .
POSITIVE CRANKCASE VENTILATION
VALVE CHECK . . . . . . . . . . . . . . . . . . .
EVAPORATIVE EMISSION CONTROL
SYSTEM . . . . . . . . . . . . . . . . . . . . .
GENERAL DESCRIPTION (EVAPORATIVE
EMISSION SYSTEM) . . . . . . . . . . . . . . .
COMPONENT LOCATION. . . . . . . . . . .
PURGE CONTROL SYSTEM CHECK
(PURGE FLOW CHECK) . . . . . . . . . . . .
EVAPORATIVE EMISSION PURGE
SOLENOID CHECK . . . . . . . . . . . . . . . .
MASS AIRFLOW SENSOR CHECK . . .
ENGINE COOLANT TEMPERATURE
SENSOR CHECK. . . . . . . . . . . . . . . . . .
INTAKE AIR TEMPERATURE SENSOR
CHECK
. . . . . . . . . . . . . . . . . . . . . .17-84
EVAPORATIVE EMISSION CANISTER
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVAL AND INSTALLATION. . . . . .
INSPECTION . . . . . . . . . . . . . . . . . . . . .
CATALYTIC CONVERTER . . . . . .
GENERAL DESCRIPTION (CATALYTIC
CONVERTER) . . . . . . . . . . . . . . . . . . . .
SPECIFICATIONS . . . . . . . . . .
FASTENER TIGHTENING
SPECIFICATIONS . . . . . . . . . . . . . . . . .
ENGINE CONTROL
ENGINE AND EMISSION CONTROL
17-3
ENGINE CONTROL
GENERAL DESCRIPTION
M1171000100437
For the accelerator system, an electronic throttle
actuator control system is utilised, eliminating the
accelerator cable.
CONSTRUCTION DIAGRAM
ENGINE CONTROL SYSTEM DIAGNOSIS
INTRODUCTION
M1171002000254
If there is a malfunction in the engine control system,
the accelerator pedal or throttle body may be faulty.
TROUBLESHOOTING STRATEGY
M1171002100284
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.
16DB405A
STOPPER
ACCELERATOR PEDAL
ASSEMBLY[BUILT-IN ACCELERATOR
PEDAL POSITION SENSOR (APS)]
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