I have a 2006 2.4 and just this week the engine started to bog down intermittently, so bad that it will die. It will magically stop and no trouble codes are stored. At one point trying to diagnose it I had the #1 coil disconnected and it made no difference in the bog down, but I tested all 4 coils and the resistance check is the same on all of them. Then today the tc light came on and it started shifting really hard and the light goes on and off a lot while driving. Any idea on either of these problems especially the bog down as it just has me stumped.