JD, when mine went out, my truck would surge occasionally. But the worst is, while sitting at a red light, the truck would surge hard and try to push me out into the intersection if you didn't keep foot on the brake! It never coded, ford couldn't find out what was wrong, they kept it for a week! I call my company fleet manager and explained what would cause this and he said the company quit sending the trucks to ford and just changed the ICP sensor themself because they couldn't wait a week for the truck. Ford finaly changed mine when i said that if it pushed me into the entersection and i wrecked with someone they could get ready! The dealer immediately changed it! Good luck.