When I go to accelerate it starts surging, not immediately but once it starts getting up aroun 40ish. If I stomp on if from the get go, I don't have the problem. Just under normal acceleration when the engine is under load. No CEL. Some of the articles on here sort of lead to the ICP sensor, but I am not sure. One of the articles that mentioned the ICP sensor also said it might have a loss of power. I only mention that because I cant get the tires to spin if I try. There is plenty of acceleration power but they won't spin. I have 305 55 20 grapplers. I am completely stock. Another thing to add, is that the fuel gauge in the overhead is saying 14.1 mpg. Two of my friends 6.0s at work are both around 19 mpg. Could one of these sensors be bad that they are allowing to much fuel into the system resulting in it flooding and causing it to surge.