mazda Workshop Repair Guides

Mazda 323 L4-1600 1597cc Workshop Service and Auto Repair Manuals

Pressure Feedback Exhaust Sensor, EGR > < EGR Valve|Locations
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EGR Valve: Testing and Inspection

Fig. 38 Connecting Vacuum Pump.

1.

Run engine at idle.

2.

Disconnect the vacuum hose from the EGR control valve.

3.

Connect a vacuum pump to the valve Fig. 38.

4.

Apply a vacuum of 150mm Hg (5.91 in Hg) or more and make sure the engine runs rough or stalls.

Pressure Feedback Exhaust Sensor, EGR > < EGR Valve|Locations