1C-10 Engine Electrical Devices:
Mass Air Flow (MAF) and Intake Air
Temperature (IAT) Sensor Removal and
Installation
S4RS0A1306021
CAUTION:
• Do not disassemble MAF and IAT sensor.
• Do not expose MAF and IAT sensor to any
shock.
• Do not clean MAF and IAT sensor.
• If MAF and IAT sensor has been dropped, it
should be replaced.
• Do not blow compressed air by using air
gun or the like.
• Do not put finger or any other object into
MAF and IAT sensor. Malfunction may
occur.
Removal
1) Disconnect negative cable at battery.
2) Disconnect MAF and IAT sensor connector.
3) Remove air cleaner case (1).
4) Remove MAF and IAT sensor (2) from air cleaner
case.
Installation
Reverse removal procedure noting the followings.
• Tighten MAF and IAT sensor screws to specified
torque.
Tightening torque
MAF and IAT sensor screw (a): 1.5 N·m (0.15 kg-
m, 1.1 lb-ft)
• Connect MAF and IAT sensor connector securely.
Mass Air Flow (MAF) and Intake Air
Temperature (IAT) Sensor Inspection
S4RS0A1306022
CAUTION:
Do not heat up MAF and IAT sensor more
than 100
q
C (212
q
F). Otherwise, MAF and IAT
sensor will be damaged.
• Check sensor O-ring (1) for damage and
deterioration. Replace as necessary.
• Blow hot air to temperature sensing part (2) of MAF
and IAT sensor (3) using hot air drier (4) and measure
resistance between sensor terminals while heating air
gradually.
If measured resistance does not show such
characteristic as shown, replace MAF and IAT sensor.
Intake air temperature sensor resistance
–20
q
C (–4
q
F): 13.6 – 18.4 k
:
20
q
C (68
q
F): 2.21 – 2.69 k
:
60
q
C (140
q
F): 0.493 – 0.667 k
:
1
2
I4RS0A130010-
(a)
I4RS0A130011-
[A]: Lower limit
[B]: Nominal
[C]: Upper limit
[D]: Resistance
[E]: Temperature
5. Temperature gauge
20
0
68
32
104
140
176
40
60
80
(2.45)
(0.58)
1
2
3
4
5
[A]
[B]
[E]
[C]
[D]
I4RS0A130012-
Содержание SWIFT RS415 2017
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