If the rail pressure limiter valve trips open in a typical CR fuel system, which of the following should be true?
A) rail pressure has exceeded the highest specified system pressure
B) an EHI injection pulse is taking place
C) actual rail pressure has fallen below desired rail pressure
D) an EHI has stuck in the open position

Question

Quizplus · Accepted Answer

The rail pressure limiter valve in a Common Rail (CR) fuel system is designed to open when the rail pressure exceeds the highest specified system pressure, to protect the system from excessive pressure that could cause damage.

If the Rail Pressure Limiter Valve Trips Open in a Typical