B16a idle problems.....just a quick refresh! where to get IACV?
 

Hey guys tommorow im looking at a 93 integra with a swapped b16a in it. im pretty sure its an a2 or sir2 because the VTEC is larger than DOHC. heres a pic of the engine.
https://images.craigslist.org/3m03pa...ee070e1ca5.jpg

Anyways, its reving really bad at idle when you start the car. Previous owner had the CEL pulled and said it was the IACV needing replacement. Now id like to believe him but im somewhat skeptical there might be other problems.

I read the main thread here about idle problems and it mentioned the FITV but im really not that inclined to start ripping this guys engine apart to check all the valves haha.

Is there any other problems that might be causing idle problems besides the IACV or FITV?

What is teh average cost of these things and how much to replace. i did a quick google search looking for the part but i cannot find it. im sure yall have a better hook up on it here!

Thanks in advance!

Re: B16a idle problems.....just a quick refresh! where to get IACV?
 

Oh yea forgot the mention that when the car drives it has normal RPM and can rev up to 8000. but for some reason at idle it cant rev above 4000. once in gear and on freeway it revs normally.

Re: B16a idle problems.....just a quick refresh! where to get IACV?
 

also should i replace the thermostat?

Re: B16a idle problems.....just a quick refresh! where to get IACV?
 

hey guys anything??? im looking at the car later. should i be looking for any thing specific in a b16a swap into an integra?

Re: B16a idle problems.....just a quick refresh! where to get IACV?
 

damn no advice can be offered about IACV on a b16 i thought this was the right forum!

ive done my searching i just want to hear from some of you guys of what to look for.


So far i know it could either by the IACV, FITV, or maybe a loose vaccuum hose.

but i read it might also be gaskets? is there a good way to visually check the gaskets??

Re: B16a idle problems.....just a quick refresh! where to get IACV?
 

i just took my iacv off and cleaned it and it helped alot on the idele problem i had. it was fluctuating between 2000rpm and 1000rpm and i cleaned the carbon out of the valve and it almost stopped the idle fluctuation now it only fluctuates 100 rpms total..mine only did this once the motor warmed up also

Re: B16a idle problems.....just a quick refresh! where to get IACV?
 

i have a b16a2 fyi if that helps u

Re: B16a idle problems.....just a quick refresh! where to get IACV?
 

just look to see if its done right, like theres no random wires, and it doesnt look like it was randomly throne in there, make sure its a b16 by looking at the stamp on the block

Re: B16a idle problems.....just a quick refresh! where to get IACV?
 

if hes not willing to replace those parts first then dont buy it

Re: B16a idle problems.....just a quick refresh! where to get IACV?
 

i agree, clean it, if not then replace it, still doesnt work, dont buy it until its fixed, or make him come down on the price

Re: B16a idle problems.....just a quick refresh! where to get IACV?
 

Does it have a chipped ECU? You can add a launch limiter/2 step through Crome. Generally used for drag racing so you don't have to try to modulate the throttle at the tree. As soon as you start moving it should rev up normally.

As for the other issue could be a bad or dirty IACV, Fast idle thermo valve, or it could just be low on coolant or air in the cooling system.

Re: B16a idle problems.....just a quick refresh! where to get IACV?
 

yea checked this car out, realy loved the body because it had jdm headlights and nice other things.


but the motor is not bar'd and wont pass smog. the ecu is chipped as well.

so i passed on it, and today i picked up a 92 GS coupe with 83k on a b18a1. not vtec but oh well. im gonna run this motor into the ground and eventually swap a b18c1.

Re: B16a idle problems.....just a quick refresh! where to get IACV?
 

or you could just swap heads

Re: B16a idle problems.....just a quick refresh! where to get IACV?
 

yea its just too many decisions...

idealy i want a completely stock gs coupe with a nice motor swap from a 96+ gsr.

the car i picked up today still needs lots of work, but i saw so many integras on there in similar shape.

basically im gonna be dropping about a grand more this week for seats, coils, and some new wheels etc....

Re: B16a idle problems.....just a quick refresh! where to get IACV?
 

My b16a idles really low after I've been driving all day at a stop and sometimes it starts to rev up and down bit never pass 1000 rpm and I have no check engine light on