mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

EGR Control Solenoid > < Evaporative Emission Control Canister|Locations|Page 3877
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EGR Backpressure Transducer: Testing and Inspection

Modulator Valve Check

1.

Remove valve.

2.

Plug #3 port and attach vacuum pump to #1 port.

3.

Blow into exhaust gas port.  Operate vacuum pump and verify vacuum is held at #3 port.

4.

Release exhaust gas port and verify vacuum released at #3 port.

5.

If not as specified, replace modulator valve.

EGR Control Solenoid > < Evaporative Emission Control Canister|Locations|Page 3877