when i start my car in the morning it starts right up an i hear the loud strong roar. when i start it after that during the day it seems to start crappier and crappier, i thought it was the battery but it isnt, i have a brand new one. it like it does not want to start an sounds like its dying but then starts an the rpms jump up. it starts but takes the rpms a few seconds to get up and makes this like "shhhhhhhhhhh" sound before it starts. i thought maybe it was my throttle position sensor going bad but does anyone know what this could be? thanks