Airflow Meter

1996 Toyota T100 SR5, 4WD, StandardSECTION Airflow Meter
NOTE: Airflow meter may be referred to as Mass Airflow (MAF) meter.
  1. Turn ignition off. Disconnect electrical connector from airflow meter. Note airflow meter terminal identification. See Fig 1.
  2. Using ohmmeter, check resistance between terminal E2 and THA. Resistance should be within specification in relation to the temperature. See AIRFLOW METER RESISTANCE SPECIFICATIONS  table. Replace airflow meter if resistance is not within specification.
  3. To test airflow meter operation, ensure electrical connector is installed on airflow meter. Connect voltmeter leads to proper terminals on airflow meter with electrical connector installed. See Fig 2.
  4. Turn ignition on. Apply air into airflow meter and note voltage reading. See Fig 2. While air is being applied, voltage reading should fluctuate. Replace airflow meter if voltage does not fluctuate. Remove voltmeter.
AIRFLOW METER RESISTANCE SPECIFICATIONS

Temperature Ohms
-4°F (-20°C) 10,000-20,000
32°F (0°C) 4000-7000
68°F (20°C) 2000-3000
104°F (40°C) 900-1300
140°F (60°C) 400-700
176°F (80°C) 200-400
Fig 1: Airflow Meter Terminal ID
G95C32492Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
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  • You are missing required tools, torque specs, or safe lifting equipment.
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