Mitsubishi Eclipse Workshop Manual page 245

EMISSION CONTROL
-
Service
Adjustment
procedures
17-13
o
o
(3) Inspect the following items with the engine cold Icoolant
temperature:
40'C
(1
04'F)
or
lessl
and hot
[coolant
temperature:
80"C
(1
76'F) or
higherl.
When engine is cold
EGR Valve Control Vacuum Inspection
Check Condition
Engine coolant temperature:
80-95"C
(1
76-203.F)
(1)
Disconnect the vacuum hose from the throttle body
EGR
vacuum nipple and connect a hand vacuum pump
to
the
nipple.
(2) Starf the engine and check
to
see that. after raising the
engine speed by racing the engine. the vacuum
räises
proportionately
with the
rise in engine
speed.
NOTE
lf
there
is a
problem
with the
change
in
vacuum.
it
is
possible that the
throttle body vacuum
port
may
be
clogged and require cleaning.
o
a
o
I
Vacuum
Engine status
Normal condition
Try applying
vacuum
ldling
Vacuum leaks from
the thermo valve
When engine is hot
Vacuum
Engine status Normal condition
5.3
kPa
(40
mmHg,
1.6
in.Hg)
ldling
Vacuum
is
maintained
26
kPa
(195
mmHg,
7.7
in.Hg)
ldling
-
Somerruhat
unstable
Vacuum
is
maintaind
Pnn
E90r0