Mazda B-Series 1998-06

Volume Air Flow Meter/Sensor

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Component Testing



Testing of the volume air flow sensor also includes testing of the integral intake air temperature sensor.



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Fig. Displaying how to open and close the shutter with finger when testing the volume airflow sensor



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Fig. Checking the resistance of the volume airflow sensor with the shutter closed



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Fig. Checking the resistance of the volume airflow sensor while moving the shutter



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Fig. Using a voltmeter with a temperature probe (A), an ohmmeter (B) and a hairdryer (C), measure the resistance fluctuation of the integral intake air temperature sensor



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Fig. Checking the resistance of the intake air temp sensor

  1. Remove the volume air flow sensor from the vehicle.
  2.  
  3. Inspect the volume air flow sensor for cracks or any other signs of damage.
  4.  
  5. Check that the sensor shutter plate opens and closes smoothly.
  6.  



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Fig. Volume air flow sensor terminal identifications



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Fig. Resistance specifications for the volume air flow sensor

  1. Using an ohmmeter, open and close the sensor shutter plate while checking the resistance between the terminals.
  2.  
  3. Using a voltmeter with a temperature probe, an ohmmeter and a hairdryer for temperature variation, measure the resistance fluctuation of the integral intake air temperature sensor.
  4.  
  5. If the resistance does not measure within specifications, replace the volume air flow sensor.
  6.  

 
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