idle adjustment screw/throtle placement sensor??

[Deltatek]

my idle adjustment screw litterally fell out on the freeway. i replaced teh screw and my idle is still screwed up. on start up it idles fine. no jumping of idle or anything. after driving from light to light or something.. idle drops to .5 then goes back up to 1.1. there are no other vacum leaks or anything. car has stalled a couple times from it droping to low apon deceleration. but once idleing it seems fine. i heard it may be the "throttle positioning sensor" which is still cuaseing this. any feedback would be great. thanx.
and sense i cant stand this symbol... .. go go

 

[Defiant]

That screw's supposed to have an O ring on it, if it was loose enough to fall out, replace it (if you didn't).

 

[Deltatek]

damn thats a far drive back to the dealership, . but thank you ill replace that. i fixed my problem with the idle though. but i definetly dont want it falling out again.

 

[laserturbo91]

if you go back to satan dont forget the get the rubber cap or whatnot that goes ontop of the screw

edit: now that i think of it you dont even need to go to satan for the o-ring, it costs like 7 dollars or something, heres the specs of it
#5 O-ring (3/8x1/4x1/16)
you can pick one up at home depot for 17 cents i think. a lot cheaper