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1.Disconnect the air flow sensor connector. 2.Measure the resistance between terminals No. 1 and No.4 of the air flow sensor connector. Standard value:
13 -
17 kΩ
(at -20°C) 5.3 -
6.7 kΩ
(at 0°C) 2.3 -
3.0 kΩ
(at 20°C) 1.0 -
1.5 kΩ
(at 40°C) 0.56 -
0.76 kΩ
(at 60°C) 0.30 -
0.45 kΩ
(at 80°C)
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3.Measure resistance while heating the sensor using a hair drier. Normal condition:
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Temperature (°C)
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Resistance (kΩ)
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Higher
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Smaller
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4.If the value deviates from the standard value or the resistance remains unchanged,
replace the air flow sensor assembly.
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