02 f150 5.4L. When the truck sits for an extened peroid of time and the engine is cold the truck seems to have some power loss. There are no check engine lights and i even doubled it check with my edge but its showing nothing. Once the engine gets up to normal operating temp the engine has most of it power back. Been looking on here and i'm thinking possible DPFE but don't wanna just drop money on something i don't need. Took the throttle body off and cleaned it about 5 or 6 months ago and also cleaned the Maf and intake air sensor at the same time. Replaced my knn filter with Amsoil dry filter about 4 months ago also. Could it be the DPFE? thank in advanced.