Delayed hot start issue

[Aristides (Aristides Balanos)]

Delayed Hot Start Issue - My tentative Solution

My thinking is that if the pump runs for a sufficient amount of time before start-up the fuel in the rail will be new and much cooler, hopefully lowering the rail temperature and purging some of the fuel vapor. Easy to implement with an adjustable delay ON relay connected in parallel to the Fuel Pump Relay. I’ve set it to run the Pump for 12 seconds, but can be very easily adjusted if needed. [Fuel Prime Schematic] . Delay relay: The FC-32 relay has the advantage that it will turn Off aft…