Intake Air Temperature Sensor - Yamaha WaveRunner FZR-GX1800 Service Manual

– +
ELEC
Control system
4. Measure the resistance when the specified
temperatures are reached.
Engine temperature sensor resistance
(reference data):
Black/yellow (B/Y) –
Black/yellow (B/Y)
20 °C (68 °F): 54.2–69.0 kΩ
100 °C (212 °F): 3.12–3.48 kΩ

Intake air temperature sensor

1. Check:
• Intake air temperature
Incorrect reading → Measure the intake
air temperature sensor input voltage.
Checking steps:
1. Measure the ambient temperature.
2. Connect a computer to the watercraft and
use the YDIS to display the intake air tem-
perature.
TIP
Check the intake air temperature sensor when
the engine is cold.
3. If the ambient temperature and the dis-
played intake air temperature differ by
more than ± 5 °C (± 9 °F), measure the
intake air temperature sensor resistance.
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