Yamaha FZ8NA Service Manual page 467

Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
Procedure
Item/components and
probable cause
5 Atmospheric pressure sensor
malfunction
6 ECU malfunction
23
Atmospheric pressure sensor: open or short circuit detected. (no
normal signals are received from the atmospheric pressure sensor.)
Able to start engine
Able to drive vehicle
d:02
Displays the atmospheric pressure.
Compare the actually measured atmospheric pressure with the
meter display value.
Check or maintenance job
Check in the diagnostic mode
(Code No. d02).
Atmospheric pressure at the
current altitude and weather
conditions is indicated.
0 m above sea level: Approx.
101 kPa
1000 m above sea level:
Approx. 90 kPa
2000 m above sea level:
Approx. 80 kPa
3000 m above sea level:
Approx. 70 kPa
Incorrect indication → Sensor
malfunction → Replace the
atmospheric pressure sensor.
Sensor inspection procedure
Refer to "CHECKING THE
ATMOSPHERIC PRES-
SURE SENSOR" on page 8-
200.
Replace the ECU.
FUEL INJECTION SYSTEM
8-72
Sensor inspection proce-
dure
Place the main switch to the
ON position, and check the
fault code indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.