Idle Speed Control (Isc) Servo (Stepper Motor) Check; Purge Control Solenoid Valve Check; Egr Control Solenoid Valve Check - Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement

MPI -
On-vehicle Service
IDLE SPEED CONTROL (ISC) SERVO
Idle speed
(STEPPER MOTOR) CHECK
control servo
Checking the Operation Sound
1. Check that the engine coolant temperature is 20_C or
2. Check that the operation sound of the stepper motor
3. If the operation sound cannot be heard, check the stepper
Checking the Coil Resistance
1. Disconnect the idle speed control servo connector and
2. Measure the resistance between terminal 2 (white clip
3. Measure the resistance between terminal 5 (green clip

PURGE CONTROL SOLENOID VALVE CHECK

Refer to GROUP 17 - Emission Control System.

EGR CONTROL SOLENOID VALVE CHECK

Refer to GROUP 17 - Emission Control System.
below.
NOTE
Disconnecting the engine coolant temperature sensor
connector and connecting the harness-side of the
connector to another engine coolant temperature sensor
that is at 20_C or below is also okay.
can be heard after the ignition is switched ON. (but without
starting the motor.)
motor's activation circuit.
If the circuit is normal, it is probable that there is a
malfunction of the stepper motor or of the engine control
unit.
connect the special tool (test harness).
of the special tool) and either terminal 1 (red clip) or
terminal 3 (blue clip) of the connector at the idle speed
control servo side.
Standard value: 28 - 33 W (at 20_C)
of the special tool) and either terminal 6 (yellow clip)
or terminal 4 (black clip) of the connector at the idle speed
control servo side.
Standard value: 28 - 33 W (at 20_C)
13D-91