Mitsubishi Stealth 1994 Import Service Manual page 1273

EMISSION CONTROL SYSTEMS -
PURGE CONTROL SYSTEM INSPECTION <Non Turbo>
Throttle body
relay
I
/ I \
I--
Evaporative Emission Control System
Evaporative emission
aporative emission
Barometric pressure sensor
Intake air temperature sensor
Engine coolant temperature sensor
Engine
control
Volume air flow sensor
module
body and connect it to a hand vacuum pump.
(2) Plug the nipple from which the vacuum hose is discon-
nected.
(3) Under the engine conditions shown below, check by
applying vacuum from a hand vacuum pump.
When engine is cold - engine coolant temperature:
Engine operating Applying vacuum
condition
Idling 375 mmHg
(14.8 in.Hg)
3,000 rpm
When engine is hot - engine coolant temperature:
Engine operating Applying vacuum
condition
Idling 375 mmHg
(14.8 in.Hg)
3,000 rpm within Try applying
three minutes after vacuum
starting engine
3,000 rpm after 375 mmHg
three minutes (14.8 in.Hg)
have elapsed
after starting
engine
Result
Vacuum is maintained
Result
Vacuum is maintained
Vacuum leaks
Vacuum will be main-
tained momentarily, after
which it will leak.
NOTE
The vacuum will leak con-
tinuously if the altitude
is 2,200 m (7,200 ft.) or
higher, or the intake air
temperature is 50°C
(122°F) or higher.