- Intake air pressure sensor output voltage
Out of specification → Replace.
Intake air pressure sensor output voltage: 3.75-4.25 V.
a. Connect the pocket tester (DC 20 V) to the intake air pressure sensor coupler (wire harness side) as shown.
Pocket tester: 90890-03112.
Analog pocket tester: YU-03112-C.
Positive tester probe: Pink/White «1»
Negative tester probe: Black/Blue «2»
![](https://motoinstruction.ru/img/yamaha/3/112321.jpg)
b. Set the main switch to «ON».
c. Measure the intake air pressure sensor output voltage.