In relation to my topic of the engine stalling at various moments (during idle, during ride).

I notice that sometimes during priming the relais of the fuel pump switches on and off. Mostly it is energized continiously for about3 seconds during priming, but sometimes is switches off and on again. This can happen multiple times during priming.

Could this be a side effect of my issue and will de ECU switch the pump of when it detects a fault anywhere? Or should it always be on during priming and could be a faulty relay or wiring the main cause of my stalling problem?