Idle problems

[93F22A6]

I am dumb founded here, my idle has been screwy(1000-2500 jumps) for a while and I just put on a fresh iacv and iatv. It fixed it a little bit but not all the way now it's only about a 250-400rpm change. My question is what else can cause this?

[wed3k]

big vacuum leak?

[19dabeast85]

I am dumb founded here, my idle has been screwy(1000-2500 jumps) for a while and I just put on a fresh iacv and iatv. It fixed it a little bit but not all the way now it's only about a 250-400rpm change. My question is what else can cause this?

I assume by "iatv" you mean the FITV? Did you bleed the coolant system to make sure there's no air bubbles after replacing those valves? You also should reset the ecu after replacing the IACV.

The air boost valve can also causing a surging idle but that is less common than other reasons. Other than that just check all of your vacuum lines.

[coffe_bean26]

mines doin the same thing so we need some answers lol

[wed3k]

mines doin the same thing so we need some answers lol

why dont you try figuring it out yourself instead of just asking for the answer? you're not going to be spoon fed through life so you should try and attempt to solve a problem once in a while.

[coffe_bean26]

why dont you try figuring it out yourself instead of just asking for the answer? you're not going to be spoon fed through life so you should try and attempt to solve a problem once in a while.

wow dude for real? I'm pretty sure this is a forum where you connect with others and ask questions. why even bother postin if your not gonna help

[Johnz826]

why dont you try figuring it out yourself instead of just asking for the answer? you're not going to be spoon fed through life so you should try and attempt to solve a problem once in a while.

Yea dude u gotta calm down on the steroids man. Maybe he doesn't like fucking with shit he doesn't know alot about, so he comes here to get advice, and some step by step guidance. Not everybody in here is Pro dude.
I give u two thumbs down for effort in helping

[coffe_bean26]

lmao thx for the support

[wed3k]

well if you actually read the thread, im at post number two. anything else?

[coffe_bean26]

yea i saw your other post, i was referring to the one directed at me, it wasn't need bro, so why even post that?

[wed3k]

yea i saw your other post, i was referring to the one directed at me, it wasn't need bro, so why even post that?

because i can.

[coffe_bean26]

true that

[Johnz826]

because i can.

Wat a douche That is all.

[eazyduzit509]

It is good to get out there and try to figure shit out on your own, thats what i do and when im stumped, i jump on here. Its amazing how many people overlook the fact that if your idle screw magically backs out enough and sets the base idle to high, it will surge like this. This is EXACTLY what happened to me, cost me a IM/TB setup before i figured it out. My car idled good at 1/2 turn out from all the way in, and from the engine vibration my idle screw would back itself out several turns and begin to surge. Check that... And ofcourse vacuum leeks, when i bolted down my FR/U strut bar i pinched my PCV hose and cut it in half, that cased terrible idle surging... Sometimes its the simple stuff.

[93F22A6]

It is good to get out there and try to figure shit out on your own, thats what i do and when im stumped, i jump on here. Its amazing how many people overlook the fact that if your idle screw magically backs out enough and sets the base idle to high, it will surge like this. This is EXACTLY what happened to me, cost me a IM/TB setup before i figured it out. My car idled good at 1/2 turn out from all the way in, and from the engine vibration my idle screw would back itself out several turns and begin to surge. Check that... And ofcourse vacuum leeks, when i bolted down my FR/U strut bar i pinched my PCV hose and cut it in half, that cased terrible idle surging... Sometimes its the simple stuff.

Silicon will fix the idle screw, thats what is one of the problems, another I found is my tb adjuster screw at the rotor is gone which is why my tb sticks. She's doing better now I just have to find a good adjustment and lock it in.