Purge Port Vacuum Check <Mpi; Purge Control Solenoid Valve Check - Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement

ENGINE AND EMISSION CONTROL –
Purge port
vacuum nipple
Vacuum
Engine speed (r/min)
A
B
Battery
Emission Control System
PURGE PORT VACUUM CHECK <MPI>
1. Disconnect the vacuum hose (red stripe) from the throttle
body purge vacuum nipple and connect a hand vacuum
pump to the nipple.
2. Start the engine and check that, after raising the engine
speed by racing the engine, purge vacuum raises according
to engine speed.
NOTE
If there is a problem with the change in vacuum, the throttle
body purge port may be clogged and require cleaning.

PURGE CONTROL SOLENOID VALVE CHECK

NOTE
When disconnecting the vacuum hose, always make a mark
so that it can be reconnected at original position.
1. Disconnect the vacuum hose (black stripe, red stripe) from
the solenoid valve.
2. Disconnect the harness connector.
3. Connect a hand vacuum pump to nipple (A) of the solenoid
valve (refer to the illustration at left).
4. Check airtightness by applying a vacuum with voltage
applied directly from the battery to the purge control
solenoid valve and without applying voltage.
Battery voltage
Applied
Not applied
5. Measure the resistance between the terminals of the
solenoid valve.
Standard value:
36 – 44 Ω (at 20 C) <GDI>
28 – 36 Ω (at 20 C) <MPI>
17-17
17300150138
17300170127
Normal condition
Vacuum leaks
Vacuum maintained