Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA1996T100 SR5, 4WD, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - SYSTEM/COMPONENT TESTS - 3.4LENGINE SENSORS & SWITCHESAIRFLOW METER
1996 Toyota T100 SR5, 4WD, Standard
Airflow Meter
1996 Toyota T100 SR5, 4WD, StandardSECTION Airflow Meter
NOTE:
Airflow meter may be referred to as Mass Airflow (MAF) meter.
- Turn ignition off. Disconnect electrical connector from airflow meter. Note airflow meter terminal identification. See Fig 1.
- 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.
- 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.
- 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 |
RENDER: 1.0x
NO RELATED
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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.