Mirage L4-1597cc 1.6L DOHC Turbo (1989)
4.
Apply vacuum while voltage is applied to the solenoid valve, verify that the valve does hold vacuum.
5.
Remove power from the solenoid valve and verify that the solenoid valve does not hold vacuum.
EGR Solenoid Continuity Test
6.
Measure the resistance between the two terminals of the solenoid valve, and verify that the resistance is between 36 and 44 ohms at 20 degrees C
(68 degrees F).
7.
If any of the tests in steps 4 through 6 failed, replace the EGR control solenoid valve.
HARNESS TEST
1. Disconnect the EGR solenoid connector and turn on the ignition.
2. Using a voltmeter, measure the power supply voltage between the harness connector terminal 1 and ground.
Voltage: System Voltage.
3. Turn off the ignition and disconnect the ECU connector. Using an Ohmmeter, check for continuity (short) to ground, between the ECU harness
connector terminal 53 and the EGR solenoid harness connector terminal 2.
Continuity: Should Not Exist.
4. Using an Ohmmeter, check for continuity between the ECU harness connector terminal 53 and the EGR solenoid harness connector terminal 2.
Continuity: Should Exist.
If any of the previous tests produce unsatisfactory results, the harness will need to be repaired or replaced. Once repairs have been completed, clear
the trouble codes and road test the vehicle to confirm that the repair has corrected the problem and the code doesn't return.
If the trouble code returns, it is possible that there is an intermittent failure of the component or the ECU. Check for looseness at all harness
junctions and test for an intermittent failure.