EGR Valve: Testing and Inspection

Inspection
1. Start the engine and let it idle.
2. Connect a vacuum pump as shown in the figure and apply vacuum.
3. Verify that the engine runs roughly or stalls at more than the specified vacuum.

Specification:
3.4-9.9 kPa (1.O-2.9 inHg)

4. If not as specified, replace the EGR control valve.