Mitsubishi 3000GT Service Manual page 530

ENGINE AND EMISSION CONTROL
(5) Measure the resistance between the terminals of the sole-
noid.
EGR SOLENOID <Turbo>
NOTE
When disconnecting the vacuum hose, place an identification
mark on it for proper re-connection.
(1) Disconnect the vacuum hose (yellow stripe, green stripe,
white stripe) from the solenoid valve.
(2) Disconnect the harness connector.
(3) Connect a hand vacuum pump to the nipple to which
the white-striped vacuum hose was connected.
(4) Check air tightness by applying a vacuum with voltage
applied directly from the battery to the EGR control
solenoid valve and without applying voltage.
Battery voltage
B Nipple condition
Not applied Open
Applied Open
Closed
(5) Measure the resistance between the solenoid valve
terminals.
MIXTURE CONTROL (MFI) SYSTEM
To inspect the mixture control (MFI) system, refer to
l
GROUP 13A - On-vehicle Service.
For detailed information concerning the illumination pat-
l
tern of the check engine/malfunction indicator lamp and
other aspects of the on-board diagnostic, refer to GROUP
Normal condition
Vacuum maintained
Vacuum leaks
Vacuum maintained