Mitsubishi 3000GT Service Manual page 423

INTAKE AND EXHAUST - On-vehicle Service
Variable induction
control servo
connectors
Open
ON-VEHICLE SERVICE
VARIABLE INDUCTION CONTROL SYSTEM
CHECK (Non Turbo)
cl 992 models>
SYSTEM CHECK
(1) Warm up the engine.
(2) Connect the tachometer. (Refer to GROUP 11 - Engine
Adjustment.)
(3) Make sure that when the engine speed is increased from
the idle speed to 5,000 rpm, the induction control valve
shaft turns.
VARIABLE INDUCTION CONTROL MOTOR CHECK
(1) zrnnect the variable induction control motor connec-
(2) Check the variable induction control motor coil for continu-
ity.
Standard value
Between terminals (11)
Close
(3) Make sure that when DC 6V is applied to terminals (11)
and (12) of the variable induction control motor connector,
the induction control valve shaft turns smoothly.
Caution
Be sure to apply a voltage of not higher than DC
6V to the variable induction control motor connector
terminals since application of high voltage may lock
the servo gears.
271 NO105
(4) If deviation from the standard value occurs or the variable
induction control valve shaft does not turn smoothly, re-
place the intake manifold plenum assembly.
<From 1993 models>
SYSTEM CHECK
(1) Disconnect the induction control valve position sensor
connector.
(2) Connect the special tool (test harness set) between the
disconnected connectors. (All terminals should be con-
nected.)
(3) Connect a circuit tester between terminal (2) and terminal
(3) of the induction control valve position sensor and
measure the voltage. In addition, measure the voltage
between terminal (3) and terminal (4) in the same way.
TSB Revision
Measured terminal
and Present
15-5
Continuity