So i have been having trouble with my idle pretty much since i got the car. its a 98 ex btw. i have pretty much given up all hope sicne i have replaced almost anything i can think of. my problem is that the idle is low and i have tried everything to adjust it and still get no where. if i turn on accessories like the lights or ac the idle is perfect and the low idle shake i get disappears. the other day i decided to try something on a whim so unplugged one of my vaccuum lines, the cruise to be exact, in essence creating a vaccuum leak and the car idled perfect, does anyone know what could be causing this?

 

ttt

 

excellent, thanks for all the help