Mitsubishi Lancer. Manual - part 217
EMISSION CONTROL <MPI>
ENGINE AND EMISSION CONTROL
17-16
5. Replace the gasket, and tighten to the specified
torque.
Tightening torque:
<4G1> 21
± 4 N⋅ m
<4G6> 20
± 2 N⋅ m
EGR PORT VACUUM CHECK <4G1>
M1173002900167
AK300784AB
Green strip
1. Disconnect the vacuum hose (Green stripe) from
the throttle body EGR vacuum nipple and connect
a hand vacuum pump to the nipple.
2. Plug the vacuum hose (Green stripe).
AK201224AB
Vac-
uum
Engine speed (r/min)
3. 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 change in vac-
uum, the throttle body purge port may be clogged
and require cleaning.
EGR PORT VACUUM CHECK <4G6>
M1173002900156
AK300786AB
White stripe
1. Disconnect the vacuum hose (White stripe) from
the throttle body EGR vacuum nipple and connect
a hand vacuum pump to the nipple.
2. Plug the vacuum hose (White stripe).
AK100011
AC
Vac-
uum
Engine speed (r/min)
3. Start the engine.
4. Check that a fairly constant negative is generated
regardless of the engine speed.
5. If no negative pressure is generated, the port is
probably blocked and should be cleaned.
EGR CONTROL SOLENOID VALVE
CHECK <4G1>
M1173003100238
NOTE: When disconnecting the vacuum hose,
always make a mark so that it can be reconnected at
original position.
AKX00351
A
B
AE
Battery
1. Disconnect the vacuum hose 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 air tightness by applying a vacuum with
voltage applied directly from the battery to the
EGR control solenoid valve and without applying
voltage.
Battery voltage
Normal condition
Applied
Vacuum leaks
Not applied
Vacuum maintained