I have had the car off the road for a few months yet just workin on it.. but i find when i start the car it idels fine but then if i rev it up a bit to lets say... 4K and let it come down on its own it will try and stall and die.. i am not thinking vaccume leak but could a miss set tps cause this? i have had a miss set one for a long time but it never bothered me.. yeah any idea what this could be or does the car just need to be driven a bit? thanks!

Tyler