206 GTI Ignition Coil Problem

Hello friends, I have a pejo 206 GTI, my first vehicle, I didn't know much about the vehicle before, but mashallah I've learned something every day from dealing with it, even I tell some masters what the problem is, I need experienced people with GTI anyway, the problem is that the vehicle stops by itself, the exhaust pops out of the exhaust. Smoke comes out with noises, sometimes black smoke, sometimes white smoke, this engine runs jerky, especially when the engine warms up, it can be felt from where I sit inside, this vibration was felt when I connected it to the computer, the ignition coil malfunctioned, coil spark plug injector petrol pump, these malfunctions are similar to each other and it is difficult to distinguish, they said now the spark plugs are changed. I can handle the easy injector, the only problem is the coil because there are four coils connected to a single socket, it does not have four separate sockets like in new vehicles with a single socket, but my problem is that there are 4 coils connected to a single socket, but there are 3 cables in the socket, should there be 3 cables in normal, or should I cancel one cable? they understood If you have a pejo GTI, how many wires are in the socket that goes to the coils?

Sir, there is no gti, but as far as I remember, they all have to be 3 wires.

Thanks to my teacher, then there is no problem with the cable, the car stops by itself, I could not understand whether it is spark plugs or coil does not ignite in both gasoline and lpg

It happens when you don't give gas, it usually happens, it works, the car vibrates, it seems to stop, when you press the gas, it doesn't, when you don't press it, sometimes the idle stays constant, it doesn't stop for a long time, then it stops by itself.