High pressure above limit
â–¶ How to fix
1- Check that the high pressure sensor is plausible. i.e compare to the analogue gauge on the tank 2- If the pressure sensor is plausible the over pressure valve could be stuck close. Replace the valve
What you'll see
The pressure in the fuel tanks will be too high.
System reaction
Amber engine warning lamp
Diagnostic depth
Detection
The high pressure is above the secondary relief valve trigger limit for a certain time.
Possible cause
Primary relief valve LNG Actuator Stuck Closed Secondary relief valve LNG Actuator Stuck Closed Sensor, high pressure gas Component Internal Failure