bogging after highway drive

[f22-dohc]

jdm f22b

after driving on the highway or for a longer period of time, it would bog and throw a cel

changed the o2 already as that was what it was giving.

wtf, now its doing the same thing. something is fowling up the o2. wtf can it be?

changed the plug wires.

where should i start?

dizzy? coil?

or full tune up?

any suggestions?