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BARO PID inspection procedure

  1. Confirm the ignition switch is turned to ON.
  2. Confirm that the following PIDs are within the specifications:

    BARO 

    1. 101.3 kPa {760 mmHg, 29.9 inHg} (Absolute pressure) 

    IAT 

    1. 10-50°C {50-122°F} 
  3. Disconnect the EGR boost sensor connector and measure the voltage at EGR boost sensor connector terminal C.
    Fig 1: Identifying EGR Boost Sensor Harness Side Connector
    G03637962Courtesy of MAZDA MOTORS CORP.

    Voltage 

    1. 4.5-5.5 V 
  4. Reconnect the connector.
  5. Disconnect the vacuum hose from the EGR boost sensor.
  6. Connect the vacuum pump to the EGR boost sensor.
  7. Select BARO PID on the WDS or equivalent.
  8. Apply the vacuum and verify that the BARO PID is as specified on the table.
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