ok after i accelerate hard with the car, and i let off, it doesn't like to idle it'll hold it at my set idle 1100 rpm and then try to sputter off, doesn't die tho just sputters at like 600.

but i flip the throttle and it'll hold idle again.


but now it seems to want to not idle all the time as if it was a vacuum leak it may have gotten worst but then i flip the throittle and it'll hold it a while.

what could it be?

 

^^^

 

^^^