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 appropriate AIRFLOW METER TERMINAL RESISTANCE table.

AIRFLOW METER TERMINAL RESISTANCE

Terminals

Ohms - Fully Closed

Ohms - Fully Open

E2-Vs

200-600

⁽¹⁾ 20-1000

E2-Vc

200-400

E2-THA

⁽²⁾ 13,600-18,400

⁽³⁾ 2200-2700

⁽⁴⁾ 500-700

E1-Fc

Infinite

⁽¹⁾	20-1200 ohms on Protege and 323.

⁽²⁾	Tested at -4°F (-20°C).

⁽³⁾	Tested at 68°F (20°C).

⁽⁴⁾	Tested at 140°F (60°C).

Fig 1: Airflow Meter & Connector

Courtesy of MAZDA MOTORS CORP.