FNM HPEP 225 Installation Manual page 109

FNM-HPEP 225/250
3. Connector for the water temperature sensor
This is a 4-pin connector for the sensor that takes the engine water temperature and then sends
the acquired information to both the ECU and the dashboard.
4. Connector for the rpm sensor
This is a 2-pin connector that is supposed to be connected to the Hall Effect RPM sensor featured
on the engine. The cable that carries the signal in the ECU is screened in order to protect it from
electromagnetic interference.
5. Connector for the timing sensor
This is a 3-pin connector that is meant to be connected to the timing sensor of the engine.