i drive a 93 hatch with a completely stock d15b7. I could not find any any loose vacuum lines, and everything seems to be fine. I thought the PCV was stuck in the open it would cause the idle to drop and not rise

anyways the idle does not go up and down, it stays constant but its lil too high

 

clean your iacv out with some throttle body cleaner.

 

ok

 

I cleaned out my iacv and the idle problem is still there.

now i believe the problem has gotten worse, before the idle was a little hight but at least it was constant. Sometimes it will stay constant but other time the idle will jump up and down slowly.

I dont see any signs of a vacuum leak

I dont think there is are in the coolant

Idle Air Control Valve is clean

Motor (d15b7) bump

 

mess with the idle screw on the throttle body...

 

ok

 

yea, if your not sure, car has to be on while doing it...

although i remember someone saying that messing with the screw was bad...i never had problems with it or have i heard it causing problems...

 

idle screw is not gonna change it unless someone changed it in the first place, unplug the iacv and see if the idle drops to normal, if it does you need a new iacv, if it stays the same thats not your problem.
on the bottom of your throttle body is there fast idle valve???
if there is on the back side of it there is a block off plate with 2 screws take them off and remove the plate, inside there is a plastic ring with 2 slots on it almost like a phillips head screw, dial that screw thing in all the way tight, that is usually the issue 90% of the time

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SIXTY-1HATCH &raquo;</TD></TR><TR><TD CLASS="quote">idle screw is not gonna change it unless someone changed it in the first place, unplug the iacv and see if the idle drops to normal, if it does you need a new iacv, if it stays the same thats not your problem.
on the bottom of your throttle body is there fast idle valve???
if there is on the back side of it there is a block off plate with 2 screws take them off and remove the plate, inside there is a plastic ring with 2 slots on it almost like a phillips head screw, dial that screw thing in all the way tight, that is usually the issue 90% of the time </TD></TR></TABLE>

pictures for this would be awesome.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stackz &raquo;</TD></TR><TR><TD CLASS="quote">

pictures for this would be awesome.</TD></TR></TABLE>

https://honda-tech.com/zerothread?id=1564019

 

although the FITV only controls the idle while warming up your motor, but never hurts to clean it...

 

thats true, but on my ls turbo the idle sucked, i thought it was injectors beeing too big and ill be damned if thats not what it was
never thought of it till like 2 months later tightened it up, and she purrs like a wilderbeast

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SIXTY-1HATCH &raquo;</TD></TR><TR><TD CLASS="quote">thats true, but on my ls turbo the idle sucked, i thought it was injectors beeing too big and ill be damned if thats not what it was
never thought of it till like 2 months later tightened it up, and she purrs like a wilderbeast </TD></TR></TABLE>

that made asbolutely no sense to me??

so your injectors turned out to be too big and 2 months later you tightened them up and it runs good now??

wtf??

 

start with the simple things...adjust your idle with the idle adjustment screw, leave the car running so you can listen to idle untill it is good.

 

the idle adjustment screw SHOULD NOT BE TOUCHED i know it won't hurt but thats usually never the case.
for the other guy that said i make no sense
I SAID i THOUGHT my injectors were too big b/c thats what happens when you have big injectors ***** your idle up from all the extra fuel.
I didn't tighten the injectors, how the expletive would you do that???
i TIGHTENED UP THE FAST IDLE VALVE
like i said 90% of the time thats what idle problems are i fix them 5 days out of the week for my friends

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SIXTY-1HATCH &raquo;</TD></TR><TR><TD CLASS="quote">the idle adjustment screw SHOULD NOT BE TOUCHED i know it won't hurt but thats usually never the case.
for the other guy that said i make no sense
I SAID i THOUGHT my injectors were too big b/c thats what happens when you have big injectors ***** your idle up from all the extra fuel.
I didn't tighten the injectors, how the expletive would you do that???
i TIGHTENED UP THE FAST IDLE VALVE
like i said 90% of the time thats what idle problems are i fix them 5 days out of the week for my friends</TD></TR></TABLE>

rrrroooooaaaaaaaarrrrrrrrrrrrrrr!!!!!!!!!!!!!

 

you aight there buddy????......wtf

 

i have this problem right now...
change out your iacv...