Mitsubishi 4G1 series, Service Manual

Page: 325 / 522

ENGINE Throttle Body
I
(3) Hold the idle air control motor as shown in the illustration,
connect the negative terminal of the power supply to
each clip as described in the following steps,
and check
whether or not a vibrating feeling (a feeling of very slight
vibration of the stepper motor) is generated as a result of
the activation of the stepper motor.
Connect the negative terminal of the power supply to
the red and black clip.
Connect the negative terminal of the power supply to
the blue and black clip.
Connect the negative terminal of the power supply to
the blue and yellow clip.
Connect the negative terminal of the power supply to
the red and yellow clip.
Connect the negative terminal of the power supply to
the red and black clip.
Repeat the tests in sequence from to
(4) If, as a result of these tests, vibration is detected, the
stepper motor can be considered to be normal.
CHECKING VACUUM ACTUATOR
VEHICLES with TRACTION CONTROL
With the throttle valve opened, apply a vacuum of 200
(7.9 to the vacuum actuator to make sure
that the throttle valve closes.
(2) Then lower the level of vacuum gradually to make sure that
the vacuum actuator opens.
REASSEMBLY SERVICE POINTS
THROTTLE POSITION SENSOR
INSTALLATION SOHC for DIAMANTE, DOHC
Install the throttle position sensor to the throttle body as
shown in the illustration.
(2) Turn the throttle position sensor clockwise to set it, and
tighten the screws.
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