Changed plugs Wed. Pulled out of garage around front of house parked, fine. Next morning going to meeting, won't remote start. Key started and running very rough missing 1-2 cylinders. Stinks bad. ETC warning indicator on. Got to go to meeting. 5 mi. country,8 mi. interstate. Running bad all the way. At least it would reach 60mph. 2hr later come out of mtg., starts and runs fine. 2mi to interstate, accel. up on ramp, and nearly dies. Tach showing 1800, but no power. ETC warning now flashing. Pull to side, WOT gets 2000rpm max. Shut off, restarted, runs fine. Never any check engine, no DTC'c new or history. Protective plastic tip of IAT sensor broken off, sensor looks good. If bad should throw code? Replacing sensor and checking socket today. Any other ideas?

Thanks, Jim.