626 L4-2184cc 2.2L SOHC F2 (1989)
EGR Valve: Testing and Inspection
Checking EGR Valve
SYSTEM INSPECTION
NOTE: Check the condition of the wiring harness and/or vacuum lines and connectors before checking the sensors or switches.
1.
Start the engine.
2.
Accelerate the engine and verify that the diaphragm of the EGR control valve does not move while the engine is still cold.
3.
Warm up the engine to normal operating temperature and run it at idle.
WARNING: Be careful when checking the EGR control valve be cause the surrounding area is very hot.
4.
Accelerate the engine and check that the diaphragm of the EGR control valve moves upward.
SOLENOID VALVE (EGR)
1.
Disconnect the vacuum hose from the solenoid valve and vacuum pipe.
Solenoid Switching Valve
2.
Blow through the solenoid valve from vacuum hose "A".
3.
Check that air flows from port "B".
4.
Disconnect the solenoid valve connector.
5.
Connect 12V and a ground to the terminals of the solenoid valve.
6.
Blow through the solenoid valve from vacuum hose "A".
7.
Check that air flows from the valve air filter.
EGR MODULATOR VALVE
1.
Remove the EGR modulator valve.
Checking EGR Modulator Valve
