I had the same problems you described at the top of the thread. '07 Caliber with 2.0 engine. Throttle body light, limp mode, misfiring, only runs 5-10 mph, sounded like it was gonna fall apart, etc... Off for awhile the first time, and it started up fine. Happened again, so I got as much advice from the threads here, removed & cleaned out the throttle body and parts, checked cables, good gas, etc, then unplugged all night to reset. Ran fine for a few days. This morning it did it again and I couldn't get to work. No local shop would look at it- "dealer only wah wah wah." Limped to dealer. Bad throttle control, intake manifold gasket, pcv valve and a few small things. They had another just like mine a few days ago. Did the throttle and it was back the next day for the rest. $980 later and it runs like a top. But tonight it and I are not on speaking terms!!!!!