Checking The Intake Air Pressure Sensor; Checking The Intake Air Temperature Sensor - Yamaha R1 Series 2015 Service Manual

Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
Test harness– speed sensor (3P)
90890-03208
Test harness– speed sensor (3P)
YU-03208
• Positive tester probe
white/black (wire harness color)
• Negative tester probe
black/blue (wire harness color)
c. Turn the main switch to "ON".
d. Rotate the crankshaft.
e. Measure the voltage. With each full rotation
of the crankshaft, the voltage reading should
cycle from 0.8 V to 4.8 V to 0.8 V to 4.8 V.
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EAS30593
CHECKING THE INTAKE AIR PRESSURE
SENSOR
1. Check:
• Intake air pressure sensor output voltage
Out of specification
Intake air pressure sensor output
voltage
3.57–3.71 V@101.3 kPa (3.57–
3.71 V@1.01 kgf/cm², 3.57–3.71
V@14.7 psi)
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a. Connect the test harness S– pressure sensor
(3P) "1" to the intake air pressure sensor and
wire harness as shown.
ECA20920
NOTICE
Pay attention to the installing direction of the
test harness S– pressure sensor (3P) cou-
pler.
b. Connect the digital circuit tester (DCV) to the
1
Replace.
ELECTRICAL COMPONENTS
test harness S– pressure sensor (3P).
Digital circuit tester
90890-03174
Model 88 Multimeter with tachom-
eter
YU-A1927
Test harness S– pressure sensor
(3P)
90890-03207
Test harness S– pressure sensor
(3P)
YU-03207
• Positive tester probe
pink/white (wire harness color)
• Negative tester probe
black/blue (wire harness color)
1
c. Set the main switch to "ON".
d. Measure the intake air pressure sensor out-
put voltage.
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EAS30594
CHECKING THE INTAKE AIR
TEMPERATURE SENSOR
1. Remove:
• Intake air temperature sensor
EWA14110
WARNING
• 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
Intake air temperature sensor re-
sistance
209–390 @80 C (176 F)
8-194
Replace.