| Event Code | ||
|---|---|---|
| Code and Description | Conditions which Generate this Code | System Response |
| E363(1) High Fuel Supply Temperature | The fuel temperature is above the trip point temperature. | The code is logged. |
| E363(2) High Fuel Supply Temperature | The engine power is derated. | |
| E363(3) High Fuel Supply Temperature | The engine is shut down. | |
- Fuel pressure regulating valve
- Fuel level
- Fuel lines
- Overheated engine
Fuel Pressure Regulating Valve
An improperly operating fuel pressure regulating valve may cause high fuel temperature. If a problem is suspected, inspect the return fuel pressure regulating valve. Clean any contamination or debris that may keep the regulating valve from operating properly. If debris is present, find the source of the contamination. Replace the return fuel pressure regulating valve if the valve is worn or damaged.
Ensure that the fuel tank contains enough fuel. As the fuel tank level decreases, the fuel temperature generally increases.
Restricted fuel return lines may produce very high fuel temperatures. Ensure that the fuel return flow to the fuel tank is not obstructed.
The fuel is supplied to the injectors through a passage in the cylinder head. Abnormally high ambient air temperature could cause the fuel temperature to reach the trip level. An overheated engine could cause the fuel temperature to reach the trip level.