sr20det sputtering idle sometimes??

[blacktopforever]

i have a 240sx with a blacktop sr20det (garrett gt2871r ar60) (tuned) sometimes when i start the car the idle sputters from 500rpm to 950prm, it doesnt have anything conected from the (pvc) on the valve cover shown in the picture labled as -A-, but then the other vacume attachment labled -B- is blocked off. I took a vacume and conected the two , i then started the car and the idle was very high at about 3100rpm, i then turned the car off disconected the negitive terminal , reconected, blocked off lable -B- as it was originally and left the pvc lable -A- without anything on it as it was before, turned the car on and it seemed to adjust the idle within 5 seconds apon start up, can anyone tell me why -A- and -B- are the way that they are???

thanks



Modified by blacktopforever at 8:40 PM 10/18/2009
Modified by blacktopforever at 8:44 PM 10/18/2009

[Klits562]

ohh right hand drive? niceanyway vac leaks will cause weird idle. I didnt fully understand what you were saying but i know you have open vac lines which is a vac leak which can effect idle plug vac leaks and you should be good.

btw idk but your engine bay looks so damn small or is it just me

[blacktopforever]

not my car i was just using this image as an example,

let me try to rephrase this,

ok on the image above labled as -B- it is blocked off

then on the image labled as -A- it is looks like this as i circled the pcv doesnt have anything conected to it its been running fine since i got it, it olny sputters once in a while not sure why , should i put a breather on the end of it?

[blacktopforever]

any ohter suggestions