Mitsubishi Stealth 1994 Import Service Manual page 1281

EMISSION CONTROL SYSTEMS -
8
Engine speed (rpm)
(2) Start the engine and check to see that, after raising the
engine speed by racing the engine, vacuum raises pro-
portionately with the rise in engine speed.
NOTE
If there is a problem with the change in vacuum, it is
possible that the throttle body port may be clogged and
require cleaning.
1 FU44f
EGR VALVE <California - Non Turbo, Turbo>
INSPECTION
carbon, etc.
If such condition exists, clean with adequate solvent to
ensure tight valve seat contact.
(2) Connect a hand vacuum pump to the EGR valve.
(3) Apply a vacuum of 500 mmHg (19.8 in.Hg.) and check
airtightness.
(4) Blow in air from one passage of the EGR to check condition
as follows.
Applying vacuum
45 mmHg (1.8 in.Hg.) or less
230 mmHg (9.1 in.Hg.) or more
INSTALLATION
Install a new gasket and EGR valve, tighten bolts to specified
torque.
Specified tightening torque: 22 Nm (16 fklbs.)
EGR TEMPERATURE SENSOR <California - Non
Turbo, Turbo>
INSPECTION
(1) Remove the EGR temperature sensor.
(2) Place the EGR temperature sensor in water, and then
measure the resistance value between terminals 1 and 2
while increasing the water's temperature.
Replace the EGR temperature sensor if there is a significant
deviation from the standard value.
Temperature "C ("F)
50 (122)
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INSTALLATION
Install the EGR temperature sensor tighten to specified torque.
Specified tightening torque: 11 Nm (8 ftlbs.)
Exhaust Gas Recirculation (EGR) System
Air does not blow through
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25-21
Result
Air blows through
Resistance klR
6 0 - 8 3
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