Fuel Pump Wiring

[Carta]

Guys, got a strange issue. Basicially if I leave my car for a long period of time (6+ hours) the car wont start with a lot of cranks and me pumping the accelerator pedal. If leave the car for 6+ hours and when I come to start it, before I do anything else, disconnect and reconnect the battery (1-2secs remove the earth) the car fires up first crank. Very strange one. I also notice that there is no priming coming from the fuel pump. In my old 180, I could hear the fuel pump prime for a couple of seconds when the ignition is on. On this I hear nothing, and its got a walbro. I was thinking of wiring a direct feed to the battery, How easy is this and do you think it would be a good idea.

Any help is very much appreciated

[Actual_Ben_Taylor]

Do you have an aftermarket immobiliser fitted?

[Carta]

I do, but it did this before the immobiliser was fitted. That was my first thought too Ben