EGR Valve: Testing and Inspection
INSPECTION
1. Start the engine and let it idle.
2. Connect a vacuum pump as shown and apply vacuum.
3. Verify that the engine runs roughly or stalls at more than the specified vacuum.
Specification: 5.4-7.7 kPa (1.6-2.3 in.Hg)
4. If not as specified, replace the EGR valve.