My engine after starting on few cylinders does not start anymore. I had a doubt on my EFI ECUs. I’ve 2 emulate each of them with a signal generator between the Marelli ECU and the EFI one. I’ve then make each injector running without engine nor fuel just to be sure they go on and off:
here is the link for one
here the link for all with frequency modulation. Every one sounds good.
But engine does not run… I need to control that fuel is ejected from each now.