The last two winters while warming my truck up I got codes P1151 and 1131. Truck ran fine so I just noted it and cleared them out (I had a 1995 that would get codes on cold days). Anyways, now my truck stumbles when I first accelerate. Now I have codes P0316 and P0302 (cylinder 2 misfire). Any chance ignoring the first ones caused the second ones? I have changed the spark plug and tested the wire going to cylinder # 2 but the problem still persists. Anyone have any suggestions.