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1.Disconnect the air flow
sensor connector. 2.Measure the resistance between
terminal No. 4 and No. 5. Standard
value:
13 - 18 kΩ (at
-20°C) 4.8 - 7.0 kΩ (at
0°C) 2.1 - 2.8 kΩ (at
20°C) 0.9 - 1.5 kΩ (at
40°C) 0.47 - 0.69 kΩ (at
60°C) 0.27 - 0.39 kΩ (at
80°C)
3.Remove the air flow
sensor.
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4.Measure the 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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5.If the value deviates from the
standard value or the resistance remains unchanged,
replace the air flow sensor. 6.Install the air
flow sensor and tighten it to the specified
torque. Tightening torque: 0.97 ± 0.2
N·m
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