Unknown fault or internal leakage in one or more of the high pressure valves.
Check for electrical fault in high pressure sensor. Toggle U15 to reset fault code. Perform isolation method to isolate which high pressure valve that is faulty and replace it.
What you'll see
Gas will leak in to the fuel pressure system towards the low pressure valve (V175) and the fuel supply system will always be pressurized.
System reaction
Amber engine warning lamp
Diagnostic depth
The GSC has indicated that the pressure in the fuel supply system has not decreased allthough all of the high pressure valves has been closed simultaneously for a short time.
High pressure valve 3 Actuator Stuck Open High pressure valve 4 Actuator Stuck Open High pressure valve 5 Actuator Stuck Open High pressure valve 6 Actuator Stuck Open High pressure valve 7 Actuator Stuck Open High pressure valve 8 Actuator Stuck Open High pressure valve 9 Actuator Stuck Open High pressure valve 10 Actuator Stuck Open High pressure valve 1 Actuator Stuck Open High pressure valve 2 Actuator Stuck Open Sensor, high pressure gas Component Internal Failure