Operation Check

Remove the EGR valve.

Fig 1: Identifying EGR Valve Connector Terminals
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Connect special tool MB991658 to the EGR valve.

Fig 2: Connecting Special Tool MB991658 To EGR Valve
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Connect the battery positive (+) terminal to terminal No. 2.
CAUTION: Connecting battery voltage to the EGR valve for a long time could damage the coil.
Connect terminals 1 and 3 to the negative (-) terminal of the battery, in order to test whether the stepper motor vibrates (with a slight shudder), indicating that the stepper motor is operating.
Connect the battery positive (+) terminal to terminal No. 5.
CAUTION: Connecting battery voltage to the EGR valve for a long time could damage the coil.

Fig 3: Connecting Terminals 1 And 3 To Negative (-) Terminal Of Battery
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Connect terminals 4 and 6 to the negative (-) terminal of the battery, in order to test whether the stepper motor vibrates (with a slight shudder), indicating that the stepper motor is operating.
If vibrations can be felt as a result of the test, the stepper motor is determined to be normal.
Using a new gasket, install the EGR valve by tightening its mounting bolts to the specified torque.
Tightening torque: 24 ± 3 N.m (212 ± 27 in-lb)