Egr Control Solenoid Valve Check - Mitsubishi Electric Lancer Evolution-VII Workshop Manual

17-16
ENGINE AND EMISSION CONTROL -
B
A
C

EGR 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 (yellow stripe, green stripe,
2. Disconnect the harness connector.
Battery
3. Connect a hand vacuum pump to the nipple to which
4. Check airtightness by applying a vacuum with voltage
5. Measure the resistance between the terminals of the
Emission Control System
white stripe) from the solenoid valve.
the green-striped vacuum hose was connected.
applied directly from the battery to the EGR control
solenoid valve and without applying voltage.
Battery voltage B nipple condition
Not applied Open
Applied Open
Closed
solenoid valve.
Standard value: 29 - 35 Ω (at 20_C)
Normal condition
Vacuum maintained
Vacuum leaks
Vacuum maintained