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HOMESERVICE MANUALSTOYOTA1994PREVIA LE, 2TZ-FZE, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - SYSTEM/COMPONENT TESTSENGINE SENSORS & SWITCHESAIRFLOW METERSUPERCHARGED
1994 Toyota Previa LE, 2TZ-FZE, AWD

Airflow Meter: Supercharged

1994 Toyota Previa LE, 2TZ-FZE, AWDSECTION Supercharged
  1. Turn ignition off. Disconnect electrical connector from airflow meter. Note airflow meter terminal identification. See Figure and Figure.
  2. Using ohmmeter, measure resistance between specified terminals. See AIRFLOW METER RESISTANCE SPECIFICATIONS  table. Replace airflow meter if resistance is not within specification.
  3. To check 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 Figure.
  4. Turn ignition on. Apply air into airflow meter and note voltage reading. See Figure. While air is being applied, voltage reading should fluctuate. Replace airflow meter if voltage does not fluctuate. Remove voltmeter.
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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.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.