Mazda Workshop Service and Repair Manuals

Air Flow Meter/Sensor: Specifications

IGNITION TIMING [1] .............................................................................................................................................................................  10° ± 1° BTDC

IDLE SPEED [1] ...........................................................................................................................................................................................  670 ± 30 RPM

AIRFLOW METER

Resistance value between terminals

E2-Vs [3] ...........................................................................................................................................................................................  20 ohms - 600 ohms
E2-Vs [2] .............................................................................................................................................................................................  20 ohms - 1K ohms
E2-Vc ...............................................................................................................................................................................................  200 ohms - 400 ohms
E2-THA (intake air thermosensor) @

-4°F (-20°C) ....................................................................................................................................................................................   13.6K - 18.4K ohms
68°F (20°C) ........................................................................................................................................................................................   2.2K - 2.7K ohms
140°F (60°C) .................................................................................................................................................................................   490 ohms - 700 ohms

EGR POSITION SENSOR

Resistance value between terminals with 15 in.Hg vacuum applied

A-B ........................................................................................................................................................................................................  Approx. 5K ohms
A-C ..............................................................................................................................................................................................................  0.7 - 5K ohms
B-C ..............................................................................................................................................................................................................  0.7 - 5K ohms

FUEL INJECTOR

Resistance value .....................................................................................................................................................................................  12 ohms - 16 ohms

IDLE SPEED CONTROL (ISC) VALVE

Resistance value ...............................................................................................................................................................................  10.7 ohms - 12.3 ohms

THROTTLE SENSOR

Voltage at ECU terminal 2F

Throttle fully closed ...........................................................................................................................................................................................  0.1 - 1.1V
Throttle fully open .............................................................................................................................................................................................  3.1 - 4.4V

WATER THERMOSENSOR

Resistance value @

-4°F (-20°C) .........................................................................................................................................................................................   14.6 - 17.8K ohms
68°F (20°C) .............................................................................................................................................................................................   2.2 - 2.7K ohms
104°F (40°C) ...........................................................................................................................................................................................   1.0 - 1.3K ohms
140°F (60°C) .........................................................................................................................................................................................   0.5 - 0.64K ohms
176°F (80°C) .......................................................................................................................................................................................   0.28 - 0.35K ohms

[1]

Diagnosis connector grounded.

[2]

Airflow meter plate fully open.

[3]

Airflow meter plate fully closed.