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Home >> Mazda >> 1988 >> RX-7 Turbo >> Repair and Diagnosis >> Engine Performance >> System >> CEC System >> Component Testing >> System Components >> Boost Or Pressure Sensor
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Boost Or Pressure Sensor

  1. Disconnect vacuum hose from sensor. Connect voltmeter to "D" terminal. See Fig 1 . Using vacuum pump, apply 3.9 in. Hg to sensor.
  2. Turn ignition on and note voltage reading. Voltage should be within 2.5-3.5 volts for non-turbo or 2.0-2.5 volts for turbo models. Replace sensor if not within specification.
Fig 1: Checking Boost Or Pressure Sensor
G94864Courtesy of MAZDA MOTORS CORP.