Mitsubishi MOTORS L200 1996, Руководство по ремонту, Страница: 330 / 1723

MPI –
On-vehicle Service
MPI –
On-vehicle Service
13A-90
5. Activate the injector and check the atomized spray
condition of the fuel.
The condition can be considered satisfactory unless it
is extremely poor.
6. Stop the actuation of the injector, and check for leakage
from the injector’s nozzle.
Standard value: 1 drop or less per minute
7. Activate the injector without activating the fuel pump; then,
when the spray emission of fuel from the injector stops,
disconnect the special tool and restore it to its original
condition.
IDLE SPEED CONTROL (ISC) SERVO
(STEPPER MOTOR) CHECK
13100540177
Checking the Operation Sound
1. Check that the engine coolant temperature is 20
_
C or
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.
2. Check that the operation sound of the stepper motor
can be heard after the ignition is switched ON. (but without
starting the motor.)
3. If the operation sound cannot be heard, check the stepper
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.
Checking the Coil Resistance
1. Disconnect the idle speed control servo connector and
connect the special tool (test harness).
2. Measure the resistance between terminal 2 (white clip
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
Ω
(at 20
_
C)
3. Measure the resistance between terminal 5 (green clip
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
Ω
(at 20
_
C)
Main hose
Battery
Injector
Return hose
Idle speed
control servo