68cam

my car keeps reving from like 1000 to 2400 rpms when it running the only way it quits is when your on the gas was is this please help and how to fix it?

T3KNiQe

Adjust the FITV (Fast idle thermo valve), which is on the back underside of the throttle body. Take of the intake and just inside is a little 1/2inch hole that leads to the FITV.

Take off the the IACV (idle air control valve) Which is on the back of the throttle body it has two coolant hoses connected to it, take it off and clean it with carb cleaner.

Also when your car is on disconnect the TPS and map sensor and see if that changes the idle or slows it any.

what engine you got????

egthomas

could be a tear in the hoses or map sensor. teknique pretty much told you how to do it.

Redbone

and if that doesnt stop it and u have no vacuum leaks then u prob need to find another IACV.

68cam

thanks guys and i have a d16y8

beanwagon

i have the same problem on my 92 lx until it reaches operating temp then idles normal

T3KNiQe

Then you need to adjust your FITV

EJ1 LS guy

adjust......not clean right????....

Redbone

adjust FITV clean IACV and check for vacuum leak after if its still a problem, then u can move on to getting another IACV if THAT doesnt fix it

T3KNiQe

Yeah adjust and clean with carb cleaner

Mrmatt3465

There is nothing to clean in the FITV. The retainer gets loose and causes your fast idle surge. Tighten it a turn or two and your idle will clean up on warm up.

MyEG6

ugh... i needa fix my misfiring prob.

trustdestruction

huh?




Anyway, your FITV may be busted and coolant could be seeping through it and being sucked into the TB. That's what happened to me... had to replace the FITV.

68cam

could someone post a pic of a FITV and how to adjust it
would be very helpful thanks

trustdestruction

https://honda-tech.com/forums/acura-integra-6/%2A%2A%2A-how-%2A%2A%2A-clean-your-fitv-aka-fast-idle-thermo-valve-1564019/


For future reference, look here first: https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/faqs-frequently-asked-tech-questions-1998336/


If when you unbolt the FITV from the throttle body there is coolant coming out of one of the 3 ports, you're FITV is probably screwed.

EJ1 LS guy

ok....but my idle cleans up when the cars warm........it's just I don't like it to idle crazy while warming up........and what do i tighten a turn or two????.....

trustdestruction

Oh really?
https://honda-tech.com/forums/showthread.php?t=1564019

trustdestruction

The white ring inside with notches in it. If you follow the link I have now posted twice, it will show you what i'm talking about. Also, clean it out... the guy who said there's nothing to clean is wrong.

egvtec

not to thread jack but what causes the surge to occasionally happen and go away?

trustdestruction

Once the car is warmed up, the temperature of the coolant flowing to the FITV causes the FITV to close, and the FITV's problem can no longer affect the car.

EDIT: I guess this whole time i've been replying to someone who jacked this thread. lol. You must be talking about the OP. My posts are in reply to "EJ1 LS guy."