Mitsubishi 3000GT 1991, Service Manual

Page: 219 / 1146

FUEL SYSTEM On-vehicle Inspection of MPI Components
(stepper motor)
Idle speed
MD998463
Checking the Coil Resistance
(1) Disconnect the idle speed control servo connector and
connect the special tool (test harness).
Measure the resistance between terminal (white clip of
the special tool) and either terminal (red clip) or terminal
(blue clip) of the connector at the idle speed control
servo side.
Standard value: 28
33
at
(68°F)
Measure the resistance between terminal (green clip of
the special tool) and either terminal (yellow clip) or
terminal (black clip) of the connector at the idle speed
control servo side.
Standard value: 28
33 at (68°F)
Operational Check
(1) Remove the throttle body.
(2) Remove the stepper motor.
Connect the special tool (test harness) to the idle speed
control servo connector.
(4) Connect the positive terminal of a power supply (approx
6 V) to the white clip and the green clip.
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