So every time the SHo sits for about 5 hours and I go to start it, the car fires up, goes to about 1500 RPM, then goes to settle at idle, sputters and dies. Now, if I give it some gas and hold it its ok. Also, I turned my throttle screw so I dont have to hold the accelerator pedal in and it works fine. The RPMS in P or N are really high, but in D it goes down to about 900 RPM's. The thing is AFTER its warmed up its fine. Any suggestions? I JUST cleaned out my IAC, MAF and reset the idle...