PLEASE HELP ME!!!

Question by ashleybills posted 6 months 2 weeks ago in C-Class

I have an 02 c320. When I start it and start driving my check engine light starts to flash and then my car idles very badly and it hardly goes. The computer says the first time it was my cylinders so I changed all thw coil packs and the plugs and plug wires. And it will say mass air flow so I changed that out. And everytime I put it on computer ia says different stuff. Now I put it on computer it says bad 02 sensor. So I change that out and its still not fixed it also doesnt wanna chamge gears when it starts messing up and I hace to come off the gas to get it to. Change. I have to pull over to as well so I can restart my car...please help me