Yamaha TMAX 2020 - Checking the Intake Air Temperature Sensor; Checking the Fuel Injector

8-111
ELECTRICAL COMPONENTS
EAS30594
CHECKING THE INTAKE AIR
TEMPERATURE SENSOR
1. Remove:
• Intake air temperature sensor
WARNING
EWA14110
• Handle the intake air temperature sensor
with special care.
• Never subject the intake air temperature
sensor to strong shocks. If the intake air
temperature sensor is dropped, replace it.
2. Check:
• Intake air temperature sensor resistance
Out of specification  Replace.
a. Connect the digital circuit tester () to the
intake air temperature sensor terminal as
shown.
b. Immerse the intake air temperature sensor
“1” in a container filled with water “2”.
TIP
Make sure that the intake air temperature sensor
terminals do not get wet.
c. Place a thermometer “3” in the water.
d. Heat the water or let it cool down to the
specified temperatures.
e. Measure the intake air temperature sensor
resistance.
3. Install:
• Intake air temperature sensor
EAS30681
CHECKING THE FUEL INJECTOR
1. Check:
• Fuel injector resistance
Out of specification  Replace the fuel injec-
tor.
a. Disconnect the fuel injector coupler from
wire harness.
b. Connect the digital circuit tester () to the
fuel injector coupler.
c. Measure the fuel injector resistance.
Intake air temperature sensor
resistance
5400–6600  at 0 C
(5400–6600  at 32 F)
Intake air temperature sensor
resistance
290–390  at 80 C
(290–390  at 176 F)
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with
tachometer
YU-A1927
3
1
2
G089057
Intake air temperature sensor
screw
1.8 N·m (0.18 kgf·m, 1.3 lb·ft)
Resistance
12.0 
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with
tachometer
YU-A1927
• Positive tester probe 
Injector terminal “1”
• Negative tester probe 
Injector terminal “2”
T
R
.
.