Why is my mazda shaking at idling and missing, check engine light flashing

I have an over drive sensor bad, a knock sensor, and a cylinoid misfire. Idk what to do about that I don't remember the codes

I have an over drive sensor bad, a knock sensor, and a cylinoid misfire. Idk what to do about that I don't remember the codes

We're replacing the coil packs( I really don't know if that's what you call the box things above the spark plugs) lol and the wires on top and the camshaft as well. So hoping it works. We've put two new sets of spark plugs in it and one isn't getting spark. I think thats my whole problem. You can see the plug trying to get spark and there's a ticking noise because it can't. So I think that's what it is.