H22 idle problem - TriStateTuners.com :: Home of Tristate Auto Enthusiast

Keeper1343 · 11-19-2009, 09:00 AM

okay so a month ago my car started to surge when cold. when warmed up it would go away. Now it has gotten much worse. There are no leaks. The CEL just tripped and told me my IAC valve. I dont think that is it tho. I seem to be leaning towards the FITV or whatever it is. Reason being cause when i take my intake off, the bottom hole in the TB is pulling a crap load of vaccum. Even after its warm there is no change. Do u think its the thermo valve thats bad and not the IAC??? When i cover that hole the idle goes back to normal. THANKS

Keeper1343 · 11-19-2009, 06:54 PM

anyone got an idea

Vr-4-Life · 11-19-2009, 07:34 PM

check your coolant level and your t-stat

Keeper1343 · 11-19-2009, 07:50 PM

coolant was bled last week.... the problem is either the iac or thermo valve ... theres not suppose to be any vaccum pulling from that hole

cobaltpsi · 11-19-2009, 09:20 PM

Quote:

Originally Posted by Keeper1343

okay so a month ago my car started to surge when cold. when warmed up it would go away. Now it has gotten much worse. There are no leaks. The CEL just tripped and told me my IAC valve. I dont think that is it tho. I seem to be leaning towards the FITV or whatever it is. Reason being cause when i take my intake off, the bottom hole in the TB is pulling a crap load of vaccum. Even after its warm there is no change. Do u think its the thermo valve thats bad and not the IAC??? When i cover that hole the idle goes back to normal. THANKS

is the car constantly self-revving?

Keeper1343 · 11-19-2009, 11:16 PM

surging.... yes. when its cold it revs from 1K to 3K

legacyspec · 12-07-2009, 05:41 PM

i have the same problem you can try taking off your iac and spraying it with carberator cleaner and that should do the trick at least thats what i have heard.

The Alchemist · 12-15-2009, 01:35 PM

Just clean out both, the IACV and the FITV. Improperly bleed coolant will also cause random idle surges as well.

DelSol95 · 12-15-2009, 03:16 PM

take the iac valve off and there should be a white plastic disc that u can tightin. just tighten it up clean the screen and u should be fixed. very common problem

josh_schul · 12-15-2009, 03:43 PM

what he said ^^

11-19-2009, 09:00 AM	#1
Keeper1343 Tri-State Addict Join Date: Sep 2007 Member #5714 My Ride: 99 Honda Prelude... get some. iTrader: (0)	H22 idle problem okay so a month ago my car started to surge when cold. when warmed up it would go away. Now it has gotten much worse. There are no leaks. The CEL just tripped and told me my IAC valve. I dont think that is it tho. I seem to be leaning towards the FITV or whatever it is. Reason being cause when i take my intake off, the bottom hole in the TB is pulling a crap load of vaccum. Even after its warm there is no change. Do u think its the thermo valve thats bad and not the IAC??? When i cover that hole the idle goes back to normal. THANKS __________________ Cleanneon (4:51:38 PM): guys find a vag, start bangin it, forget their friends Cleanneon (4:52:00 PM): 2 months (usually less) later the vag finds another douchebag, and your friends want nothing to do with you Keeper1343 (4:52:07 PM): lol Cleanneon (4:52:07 PM): on top of which it hurts you to pee

11-19-2009, 06:54 PM	#2
Keeper1343 Tri-State Addict Join Date: Sep 2007 Member #5714 My Ride: 99 Honda Prelude... get some. iTrader: (0)	anyone got an idea __________________ Cleanneon (4:51:38 PM): guys find a vag, start bangin it, forget their friends Cleanneon (4:52:00 PM): 2 months (usually less) later the vag finds another douchebag, and your friends want nothing to do with you Keeper1343 (4:52:07 PM): lol Cleanneon (4:52:07 PM): on top of which it hurts you to pee

11-19-2009, 07:50 PM	#4
Keeper1343 Tri-State Addict Join Date: Sep 2007 Member #5714 My Ride: 99 Honda Prelude... get some. iTrader: (0)	coolant was bled last week.... the problem is either the iac or thermo valve ... theres not suppose to be any vaccum pulling from that hole __________________ Cleanneon (4:51:38 PM): guys find a vag, start bangin it, forget their friends Cleanneon (4:52:00 PM): 2 months (usually less) later the vag finds another douchebag, and your friends want nothing to do with you Keeper1343 (4:52:07 PM): lol Cleanneon (4:52:07 PM): on top of which it hurts you to pee

11-19-2009, 11:16 PM	#6
Keeper1343 Tri-State Addict Join Date: Sep 2007 Member #5714 My Ride: 99 Honda Prelude... get some. iTrader: (0)	surging.... yes. when its cold it revs from 1K to 3K __________________ Cleanneon (4:51:38 PM): guys find a vag, start bangin it, forget their friends Cleanneon (4:52:00 PM): 2 months (usually less) later the vag finds another douchebag, and your friends want nothing to do with you Keeper1343 (4:52:07 PM): lol Cleanneon (4:52:07 PM): on top of which it hurts you to pee

12-15-2009, 03:16 PM	#9
DelSol95 Tri-State Addict Join Date: Apr 2009 Location: philly Member #13549 My Ride: 95 Del Sol iTrader: (1)	take the iac valve off and there should be a white plastic disc that u can tightin. just tighten it up clean the screen and u should be fixed. very common problem __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

11-19-2009, 07:34 PM	#3
Vr-4-Life Tri-State Post Whore Join Date: May 2006 Location: Philly PA Member #1961 My Ride: BMW E60 M5 V10 6 Speed --- Ducati Monster 696 iTrader: (4)	check your coolant level and your t-stat

12-07-2009, 05:41 PM	#7
legacyspec Noob-Jersey Join Date: Sep 2009 Location: Poconos Member #14629 My Ride: 07 Legacy Spec B and 92 Prelude SI iTrader: (0)	i have the same problem you can try taking off your iac and spraying it with carberator cleaner and that should do the trick at least thats what i have heard.

12-15-2009, 01:35 PM	#8
The Alchemist Tri-State Aficionado Join Date: Oct 2009 Member #14803 iTrader: (2)	Just clean out both, the IACV and the FITV. Improperly bleed coolant will also cause random idle surges as well.

12-15-2009, 03:43 PM	#10
josh_schul Tri-State Training Wheels Join Date: Jul 2009 Member #14301 My Ride: 1997 Honda Prelude iTrader: (0)	what he said ^^ __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 signatures.

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