replaced coil when old 1 ****ted out on me about 3weeks ago cam/crank position sensor and the computer on the fire wall. still does the same thing...

it started with a slight miss going down the road

idles fine

it started missing very lightly going down the road
then one morning she shut off going down the highway
pulled over put it in park and then it fired right up...

over time it happened more often and now its too the point i cant step on the gas at all or it starts missing real bad like its only firing on 2 cylinders and then shuts off park or neutral or when i put it in drive. some times does not want to start back up right away and backfires through the intake
help