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Home >> Mazda >> 2007 >> 3 Mazdaspeed, 2.3 L >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (L3 With TC) >> Boost Air Temperature Sensor Inspection >> Resistance Inspection
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Resistance Inspection

NOTE: Before performing the following inspection, make sure to follow the procedure as indicated in the troubleshooting flowchart. (See HOW TO USE THIS MANUAL .)
  1. Disconnect MAP/boost air temperature sensor.
  2. Measure the resistance between the MAP/boost air temperature sensor terminals A and B using a tester.
    • If not as specified, replace the MAP/boost air temperature sensor. (See INTAKE AIR SYSTEM REMOVAL/INSTALLATION .)
    • If the MAP/boost air temperature sensor is normal, but PID are out of specification, perform the "CIRCUIT OPEN/SHORT INSPECTION ".
      Fig 1: Identifying Boost Air Temperature Sensor Connector Terminals
      G04859809Courtesy of MAZDA MOTORS CORP.
    AMBIENT TEMPERATURE AND RESISTANCE SPECIFICATION

    Ambient temperature (°C {°F}) Resistance (kilohm)
    20 {68} 2.4-2.7
    60(140} 0.59-0.64