I could puke…. Fiat Seicento 1,1L HEEEELP

I get my Fiat Seicento 1.1L Hobby Year 2000 with 112TKM just no longer to run. What I tested: Ignition: All 4 spark plugs lightning hose after the gasoline filter removed….ignition turned on, fuel he blows out through the B-filter Sprit also comes out of the inlet hose at the front………no MPI but the older injection with the orange nozzle on top of it before the “clamp” I also had outside. When I pour bissel sprite into the “crack cap” under the nozzle n tippe…….is it running for a few seconds funnyly Can it be that it is no longer running because I pulled the relays in the interior when the ignition is switched on? And is there a relay which is responsible for the injection? Have 3 blacks (equivalent values) inside A Blue One Red. immobilizer? Does it have a camshaft sensor? or crankshaft sensor? —————————————————————————————————————- Request for help…… I’ve been standing in front of the little one for hours and already have back pain screwing around and standing