mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Purge Flow Sensor, Evaporative System > < Differential Pressure Feedback EGR Sensor <--> [Pressure Feedback Exhaust Sensor, EGR]|Description and Operation
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Differential Pressure Feedback EGR Sensor: Testing and Inspection

Inspection

1. Connect SST (NGS) to data link connector.
2. Warm-up engine and run it at idle.
3. Access DPFEGR PID and record value.

4. If not as specified, perform the following:

a. Turn ignition switch ON. Access DPFEGR PID on NGS.
b. Disconnect tubes from sensor.
c. Connect hand vacuum pump to intake manifold side (downstream side = smaller diameter) of DPFE sensor.
d. Apply vacuum and check PID. If not at specification. replace the differential pressure feedback EGR sensor.

Purge Flow Sensor, Evaporative System > < Differential Pressure Feedback EGR Sensor <--> [Pressure Feedback Exhaust Sensor, EGR]|Description and Operation