Diamante V6-2972cc 3.0L SOHC (1992)
EGR Control Solenoid: Testing and Inspection
EGR Solenoid Valve (California Only)
EGR Solenoid
Engine Control Module Connector--For Pin Applications See Components
To test the EGR Control Solenoid Valve, located on the firewall, proceed as follows.
COMPONENT TEST
1.
Disconnect the green striped vacuum hose from the EGR valve and connect a hand vacuum pump through a vacuum "Tee".
2.
While the engine is cold (coolant temperature less than 20 degrees C or 68 degrees F) race the engine and verify that vacuum is not present.
3.
Allow the engine to warm up (coolant temperature greater than 70 degrees C or 158 degrees F).
4.
Race the engine and verify that vacuum increases to 100 mm Hg or 3.9 in. Hg or more.
5.
Disconnect the vacuum "Tee" and connect the vacuum pump directly to the EGR valve.
6.
Using the vacuum pump apply 215 mm Hg or 8.5 in. Hg of vacuum while the engine is at idle and verify that idle becomes unstable.