Mitsubishi Eclipse 1990 Service Manual page 814

Vacuum
Enginespeed
Vacuum
Engine speed
PURGE
1. Disconnect the vacuum hose from the throttle body purge
vacuum nipple and connect a hand vacuum pump to
the nipple.
2. Vacuum is kept constant despite the increased engine
speed.
NOTE
If no vacuum is generated, the throttle body purge port
may be clogged.
Engine (Turbo)>
1. Disconnect the vacuum hose from the intake manifold
purge vacuum nipple and connect a hand vacuum pump
to the nipple.
2. Vacuum is kept constant despite the increased engine
speed.
NOTE
If no vacuum is generated, the intake manifold purge
port may be clogged.
TSB Revision
Engine (Turbo)
VACUUM CHECK
(Turbo)>
Engine>