nasty fluctuating idle - Honda Prelude Forum

h22 kid · 03-21-2009, 04:53 PM

i did a swap into my 96 accord with and h22a1 and i am having fluctuating idle problems. i check all my vacuums and gaskets and everything is good. i bought a new iacv and that seems to have not done anything... anyone have any ideas that may be of any help??
thanks

BBYlude · 03-21-2009, 05:07 PM

try bleeding your coolant system. Bleed nipple is below the distributer cap.

h22 kid · 03-21-2009, 06:37 PM

would that help?? i just threw in fresh water fluid and everything... i rebuilt the whole motor from ground up

da_dougert · 03-21-2009, 07:19 PM

Remove the intake tube and while its surging plug the bottom hole on the inside of the TB and if it stops you have a bad IACV if it doesn't you have either a vacuum leak, manifold gaskets or your ECM could do because it also is capable of throttle control i believe. Some people say you FTV valve on the bottom of the throttle body could be the cause. Hope this helped some.

BBYlude · 03-21-2009, 07:38 PM

Quote:

Originally Posted by h22 kid

would that help?? i just threw in fresh water fluid and everything... i rebuilt the whole motor from ground up

No it wouldn't... I just like to spread unhelpful information

Do a search and see if anyone else has ever mentioned this. Oh wait, I'll save you the 30 seconds. Yes, people have mentioned this. Yes, it is a common cause of idle fluctuation. And yes, it might help seeing you JUST PUT FLUID IN AN EMPTY SYSTEM! OMG.

Try using the search function next time...

h22 kid · 03-21-2009, 10:16 PM

lol haha my bad but thanks and as far as the iacv i know its not bad i spent 230 for it so its brand new... lol didnt have to be so harsh bbylude.... lol funny **** though thanks for the help and i will keep you guys posted when i bleed the coolant see if it helps or not

da_dougert · 03-22-2009, 12:06 AM

ya let me know, I was going threw that issue on my H23 and oddly enough it just kinda stopped. Of course after i went threw all this hell with it.

sexylude97 · 03-22-2009, 11:11 AM

try changing your FITV. that was the problem on my accord and my prelude

darkstar67 · 03-22-2009, 11:18 AM

The end all surging/bouncy idle thread - Preludepower.com

omg. that took me 30 seconds. so hard to click search button...

h22 kid · 03-22-2009, 05:46 PM

i bled the coolant and it didnt change a thing i think its the FITV.

darkstar67 · 03-22-2009, 06:52 PM

if you think it is the fitv, take it off and clean it. or take a multimeter and check it.

sexylude97 · 03-22-2009, 07:01 PM

F- it.... just change it.

h22 kid · 03-22-2009, 08:07 PM

yeah i think i might change it that **** is old!!! lol time to get a new one... but just out of curiosity how do you check it... i took it out to clean it up and idk where i would begin to look at it with a multimeter

h22 kid · 03-24-2009, 10:56 PM

everyone thanks it turned out to be a bad FITV thanks much guys

darkstar67 · 03-26-2009, 08:54 PM

omg dude. search on how to check it. its even in the link i sent you.