6n 16v Engine cut out gremlins

[NOZ]

I guys i've got a problem with the engine cutting out and total switch off when ever the car feels like it whilst trying to startup or even when the cars already running. Sometimes keep trying start and won't, any random attempt starts the engine up.

Seems like an electrical problem and already changed the distributor, spark plugs and lead and even the induction along with cleaning the throttle out to no avail.