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civic4dr · 11-07-2009, 10:47 AM

before i start my build im having some issues right now with my 4dr. the idle keeps reving up and down doesnt do it when i start it...but the first stop i come to...when i push in the clutch is starts it...from abt 1500 up to 3000 rpm up and down and doesnt stop until i start driving again...i have checked my map sen. and its not that..i really dont know how to fix it...but any ideas would be appreciated...thanks.

civic4dr · 11-07-2009, 11:14 AM

I need huge help!!!!!please anyone!!

phyregod · 11-07-2009, 11:29 AM

Sounds like a huge vacuum leak, or a faulty IACV or FITV.

Is it throwing any codes at all?

civic4dr · 11-07-2009, 12:03 PM

not vac leak i think...looked all over and no hoses off...not sure if im missing anything....and im not good with the abbreviations yet....sorry...so what is iacv or fitv?....im new to working on hondas but not driving them....

civic4dr · 11-07-2009, 12:04 PM

and no....theres no codes being thrown....and thanks

josh_crewdson@y · 11-08-2009, 02:26 AM

fitv=fast idle thermo valve (bottom of throttle body). iacv=idle air control valve(back of intake manifold)

civic4dr · 11-08-2009, 07:40 AM

thanks boss

..my friend who is good with these d-series knows a few trick...we took tthe iacv off and played with it...some trick like putting a little piece of cardboard or something small to leave a little space....well that didnt work...so i dont know what to do..i just hope i can get my truck running b4 winter so i can start tearing shit down and starting on my total rebuild.....thanks for the lesson man.....much appreciated!

RoughKnight · 11-11-2009, 08:25 PM

Your TPS/MAP sensors sound like you've put them in each others place. Thats what happened to me when I first did my swap. Also, you should be getting a CEL. Is the cel bulb pulled?

f22b1 coupe · 11-13-2009, 05:09 AM

If it were the FITV it would only do it when it was cold, then like magic, it would just stop and run right once the thermostat opened. If it is doing it all the time, then it's the IACV. They aren't cheap, but unfortunately they do go bad on civics pretty regularly.

eg'sforlife · 11-13-2009, 04:43 PM

do you have a light weight flywheel cause that can cause your car to be searching for an idle.

11-07-2009, 10:47 AM	#1
civic4dr Greenhorn Join Date: Nov 2009 Location: tn Age: 20 Posts: 14 iTrader: 0 / 0% Ride: 1992 honda civic sedan Rep Power: 0	idle problem before i start my build im having some issues right now with my 4dr. the idle keeps reving up and down doesnt do it when i start it...but the first stop i come to...when i push in the clutch is starts it...from abt 1500 up to 3000 rpm up and down and doesnt stop until i start driving again...i have checked my map sen. and its not that..i really dont know how to fix it...but any ideas would be appreciated...thanks.

11-11-2009, 08:25 PM	#8
RoughKnight Christmas Car Join Date: Aug 2009 Location: Ottawa, Ont Age: 21 Posts: 350 iTrader: 0 / 0% Ride: 93 4dr D15B, Greddy Short Ram, 4-2-1 Header, 2.5" Exhaust. Rep Power: 8	Your TPS/MAP sensors sound like you've put them in each others place. Thats what happened to me when I first did my swap. Also, you should be getting a CEL. Is the cel bulb pulled? __________________ Please direct your questions in the following format. 1) Did I search it on Google? 2) Did I use the search function in the TOP RIGHT AREA of this page? 3) Refer to Step 1 and 2. If that doesn't work, then feel free to post.

11-13-2009, 04:43 PM	#10
eg'sforlife Senior Member Join Date: Oct 2008 Location: Whiteville, NC Age: 19 Posts: 383 iTrader: 0 / 0% Ride: 92 Civic LX Rep Power: 14	do you have a light weight flywheel cause that can cause your car to be searching for an idle. __________________ \|.....Overnight.................... .....\| \|\| \|........Parts From Japan.............\|\|'\|";,___ \|_..._...____________======\|\|_\|_\|.. .,..] "(@)'(@)''''''''''''''''''''''''\|( @)(@)****" (@)

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11-07-2009, 11:14 AM	#2
civic4dr Greenhorn Join Date: Nov 2009 Location: tn Age: 20 Posts: 14 iTrader: 0 / 0% Ride: 1992 honda civic sedan Rep Power: 0	I need huge help!!!!!please anyone!!

11-07-2009, 12:03 PM	#4
civic4dr Greenhorn Join Date: Nov 2009 Location: tn Age: 20 Posts: 14 iTrader: 0 / 0% Ride: 1992 honda civic sedan Rep Power: 0	not vac leak i think...looked all over and no hoses off...not sure if im missing anything....and im not good with the abbreviations yet....sorry...so what is iacv or fitv?....im new to working on hondas but not driving them....

11-07-2009, 12:04 PM	#5
civic4dr Greenhorn Join Date: Nov 2009 Location: tn Age: 20 Posts: 14 iTrader: 0 / 0% Ride: 1992 honda civic sedan Rep Power: 0	and no....theres no codes being thrown....and thanks

11-08-2009, 02:26 AM	#6
josh_crewdson@y Member Join Date: Dec 2007 Posts: 72 iTrader: 0 / 0% Ride: 99 ex, d16y8 PnP, headers, exhaust, crower cam, 135whp Rep Power: 4	fitv=fast idle thermo valve (bottom of throttle body). iacv=idle air control valve(back of intake manifold)

11-08-2009, 07:40 AM	#7
civic4dr Greenhorn Join Date: Nov 2009 Location: tn Age: 20 Posts: 14 iTrader: 0 / 0% Ride: 1992 honda civic sedan Rep Power: 0	thanks boss ..my friend who is good with these d-series knows a few trick...we took tthe iacv off and played with it...some trick like putting a little piece of cardboard or something small to leave a little space....well that didnt work...so i dont know what to do..i just hope i can get my truck running b4 winter so i can start tearing shit down and starting on my total rebuild.....thanks for the lesson man.....much appreciated!

11-13-2009, 05:09 AM	#9
f22b1 coupe Junior Member Join Date: Dec 2005 Location: Indiana Age: 22 Posts: 240 iTrader: 0 / 0% Ride: 96 Accord EX coupe Rep Power: 23	If it were the FITV it would only do it when it was cold, then like magic, it would just stop and run right once the thermostat opened. If it is doing it all the time, then it's the IACV. They aren't cheap, but unfortunately they do go bad on civics pretty regularly.

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