P0302

What is your question?

I changed spark plugs and coil pack, still check engine light flashes, I had misfire in cylinder 8 too but when I changed all spark plugs and coil pack on cylinder 2 and cylinder 8. The misfire on cylinder 8 disappeared, but I still have on cylinder 2.

What makes this problem better or worse?

It doesn't seem to change

How long has your 2002 Dodge Ram 1500 had this problem?

A few days