Hi again. A few weeks ago I started my car by the morning, all was ok, but suddenly some minutes after, when I was at a red light, it started to run rough and I felt immediate power loss, and the check engine light appeared. I drove this way 3 or 4 miles away, turned off the car and 15 or 20 minutes after I got back, turned on the car again and the shaking and power loss disappeared. I got the car scanned and I got the P0302 code. So I changed the spark plugs (I installed Autolite XP iridium) but the problem persists, so I changed the cilinder #2 COP. No solution. Today I cleaned the throttle body but it has had no effect. The trick here is that once the car is at normal operating temperature and I shut it off, and restarted the problem disappears. Any suggestion??