Car Starting kinda of crappy. HELP

cb18201

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Oct 25, 2003
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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
 
No Sig - We need some of the info that would normally be in your sig. What year car? What mods?

Does the engine not turn over good? Or does it not fire up even though the starter spins the engine?