Ported EGR Valve
WARNING: This page does not describe the selected car, but rather 25 other vehicles, including the 2005 Saab 9-2X, 1995 Saab 900, 1994 Saab 9000, 1994 Saab 900, and 1993 Saab 9000. However, it is still accessible from the selected car via links, so may be relevant.
Warm engine to operating temperature. Increase engine speed to 1900 RPM on non-turbo engines or 2600 RPM on turbo engines. EGR valve should open. Disconnect vacuum hose (upper hose on EGR valve with 2 hoses) from EGR valve. Apply vacuum. Engine should idle rough or idle speed should drop.