Resistor (For Injector) Check; Idle Speed Control Servo (Stepper Motor) Check - Mitsubishi Lancer Evolution-VII Workshop Manual

13A-138
Fuel pump relay 3
1 2 3
4 5 6
1 2 3
4 5 6
Equipment
side connector
Idle speed control
servo (stepper motor)
MPI -
On-vehicle Service

RESISTOR (FOR INJECTOR) CHECK

Resistor
1. Disconnect the resistor connector.
(for injector)
2. Measure the resistance between each terminal.
Standard value:
IDLE SPEED CONTROL SERVO (STEPPER
MOTOR) CHECK
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" position.
(but without starting the engine.)
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-ECU.
Measurement terminal
1 - 3
4 - 3
5 - 3
6 - 3
Resistance Ω
5.8 - 6.2 (at 20_C)