Mitsubishi Eclipse 1990 Service Manual page 824

EGR VALVE CHECK
Remove the EGR valve and inspect for sticking, carbon
1.
deposits, etc. If contaminants are found, clean the valve
with a suitable solvent so it will seat correctly.
2. Connect a hand vacuum pump to the EGR valve.
3. Apply 67
sure that the vacuum is maintained.
4. Apply vacuum according to the
the passage of air by blowing through either side of the
EG
passages.
Vacuum
5.3
27
5. Replace the gasket, and tighten the valve to the specified
torque.
Specified torque: 22 Nm (16
TSB Revision
(Turbo) and
(20 of vacuum, and check to be
Passage of air
(1.6 or less Air does not blow out of op-
posite
(7.9 or more
Air blows out of opposite
passage.,
Engine>
below and check
passage.