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

 

is it a slow or fast idle fluctuation ??

 

its slow... goes from 1k to 3k

 

It's probably your FITV (fast idle thermo valve) It's located under your TB, that thing sucks, I don't even know why they put them or our cars, but there's a way to clean it
https://honda-tech.com/forums/honda-accord-1990-2002-2/cleaning-iacv-fitv-tb-1844067/
This will surely help!!

 

thanks i'll get started on it tomorrow maybe that would be it i hope so

 

make sure you bled your coolant properly as well

 

how do you bleed the coolant?? does the car have to be on?

 

The way I do it, or the way I was taught, with your engine cold, open the bleeder bolt, which is located by the thermostat area, it's a 12mm bolt I think, then open your radiator cap and start filling up until the colant starts coming out of the bleeder bolt, then close the bleeder bolt and then the radiator. That's how I was taught to do it.

 

^ do this, but leave your rad cap off, start the car and let it get to full operating temp, then put the radiator cap on. this is what it says in the helm's anyway; makes sure all the last little bubbles are out as the fluid expands as it warms up i suppose.

 

i did that and water was shooting everywhere and the idle stayed... i think it might be the FITV. is the fitv suppose of be loose on the inside where the two metal nipples clink against each other

 

?? there should be a big white plastic plunger on the inside; it should be secure. if it's loose, you can screw it down with a flathead screwdriver iirc.

 

well its hella loose.... and its yellow and has now way of screwing it down... idk where to go from here

 

hmm, sorry, sounds different from the h22a4 then. i'm pretty sure it shouldn't be loose though.

 

sorry i opened it again and i saw those notches... i tightened it and then i noticed when i started the car it had a nice consistant idle for five seconds unlike before where the idle just started when the car ignited. i think that my FITV is bad completely...

 

I hate that fitv, just get an aftermarket tb that doesn't have it, lol, jk, try to find another if cleaning it didn't work.

 

i have an aftermarket tb and am going to put that on to see if the idle goes away and if it does i will get another fitv if it doesnt then its off to bleeding the coolant again and searching for vacuum leaks.... i know its not vacuum leaks cause i rebuilt the entire motor with new gaskets everywhere so might be those stupid hoses connected wrong... let you guys know

 

I am having the same problem with my h22 swap. i tried the fitv but it did the same thing yours did, idled constant and then went back to spiking. Let me know if the aftermarket TB works for you.

 

good news everyone that aftermarket TB WORKED!!!! so that tells me that my FITV was bad... thanks everyone for the great help you all did....h22 EGHATCH your FITV might be bad but try cleaning the IACV first if that doesnt help then get another TB