About two weeks ago my car started running very very rough, the motor would feel like its jerking back n forth and the exhaust sound is very gargled. When I checked the CEL I got a random misfire code, and small air volume code.

So Ive changed the spark plugs. (gaped them correctly)
Ive bought a new mass air flow sensor and intake filter

Started her up let her run for a min. then i took it for a spin.

Same effect as before. I didnt have a CEL but i connected the scanner and it doent give the same codes as before. This time no "air volume" code or whatever.

And it changed from "random cylinder'' to "Cylinder 1" misfire.

I took the coil pack from cyl 2 and switched with cyl 1 to see if its the coil pack.

No luck.

Could it be the ICM? how would I test if it good or not?

or could it be a massive air leak? (I have true dual all the way back so i cant listen for any air hissing)

Need help guys!!