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Home >> Saab >> 1982 >> 900 S, 2D Hatchback, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Emissions >> EGR Function Testing - SAAB >> EGR Function Testing - SAAB >> Test 1 >> Ported EGR Valve
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Ported EGR Valve

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.

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