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.
Airflow Meter/Sensor Inspection
Inspect airflow meter for damage and ensure measuring plate moves smoothly. See Fig 1 . Disconnect airflow meter connector. Move measuring plate and measure resistance between terminals. See AIRFLOW METER TERMINAL RESISTANCE table.
| Terminal Wire Color | Volts - Ignition ON | Volts - Engine Running |
|---|---|---|
| Black/Yellow (Power Supply) | 12 | 12 |
| Green/Orange (Burn-Off) | 0 | 0 |
| Green/Black (Airflow Mass) | 1.0-2.0 | 1.9-5.0 |
| Green/Yellow (Ground) | About 0 | About 0 |
| Black/Orange (Ground) | About 0 | About 0 |
| Terminals | Ohms - Fully Closed | Ohms - Fully Open | ||||||
|---|---|---|---|---|---|---|---|---|
| E2-Vs | 100-400 | 20-1000 | ||||||
| E2-Vc | 100-400 | 100-400 | ||||||
| E2-Vb | 200-400 | 200-400 | ||||||
| E2-THA | (1) 13,600-18,400 | (1) 13,600-18,400 | ||||||
| (2) 2200-2700 | (2) 2200-2700 | |||||||
| (3) 500-700 | (3) 500-700 | |||||||
| E1-Fc | Infinite | 0 | ||||||
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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.