Home > Honda Civic > Idle Control Valve > 1991 Show Enter your vehicle info to find more parts and verify fitment
Select by VIN Enter your VIN for the most accurate results. Enter your VIN for the most accurate results. or Select by Model -- Select Emission & Transmission -- 4 Idle Control Valves found
Related 1991 Honda Civic PartsAlternate Year Models+ How to clean IACV on DPFI Idling problem Honda-Tech Member Thread Starter
Join Date: May 2007 Location: ca, usa Posts: 180 Likes: 0 Received 1 Like on 1 Post Well, I've been searching and asking, but there are still no answers. Its all for MPFI model but mine is a DPFI. Basically this is just to show you where to locate it on your model because the placement is different. My symptom was when my car run cold everything is normal, but once it's warmed up the idle jump up and down like crazy. This fixed the problem and hope it helps.
Put back in reverse order of removable. Thanks for looking. The following users liked this post: Honda-Tech Member
Join Date: Apr 2002 Location: I am Tyson Posts: 18,888 lol a wood chip! yeah that needs a bit of cleaning. good post. added to faq. Honda-Tech Member
Join Date: Nov 2007 Location: Kitsap, WA, USA Posts: 682 Likes: 0 Received 0 Likes on 0 Posts Thank you, thank you, thank you. Honda-Tech Member
Join Date: Jul 2005 Location: Close to West Chester, PA, United States of America Posts: 870 Likes: 0 Received 0 Likes on 0 Posts Last edited by phoenix_iii; 03-15-2009 at 10:19 PM. Honda-Tech Member
Join Date: Nov 2007 Location: Kitsap, WA, USA Posts: 682 Likes: 0 Received 0 Likes on 0 Posts Anyone have any tips for removing the two vacuum lines. Mine are freaking warped on there. I tried everything to get them off. Should I try a chemical or is there a special tool? Junior Member
Join Date: Mar 2009 Location: Narvon, Pennsylvania Posts: 26 Likes: 0 Received 0 Likes on 0 Posts Get a pair of pliers, grip on the line where it would be "mated" to the metal, and rotate the pliers (and the line) around the pipe. Should break it free. That always works for me. EFB055
Join Date: Dec 2005 Location: Brisvegas, QLD, Australia Posts: 13,249 Quote: Originally Posted by Tyson lol a wood chip! yeah that needs a bit of cleaning. good post. added to faq. How did it get passed the air filter Junior Member
Join Date: Dec 2007 Location: Staring down the barrell of my 12 ga. Texas, USA Posts: 491 Likes: 0 Received 0 Likes on 0 Posts Quote: Originally Posted by Eighty-Nyne Anyone have any tips for removing the two vacuum lines. Mine are freaking warped on there. I tried everything to get them off. Should I try a chemical or is there a special tool? vise grips is what i use... while they are on, just twist the hoses on the nipples of the valve. it helps break them loose.. but one question, are they vacuum lines or coolant. i got a new iacv for my da and it was coolant... Honda-Tech Member
Join Date: Feb 2006 Location: palm beach, florida Posts: 332 Likes: 0 Received 0 Likes on 0 Posts good thread bump
Honda-Tech Member
Join Date: Jan 2010 Location: N. AZ Posts: 183 Likes: 0 Received 0 Likes on 0 Posts This saved my marriage (to my hatchy) Still likes to bounce once in a while, but its a 20+ year old part, so its to be expected here and there. SOLVED THIS PROBLEM: I think that while its cold, the thermal fast idle valve bypasses enough air to keep it from dropping below the "low idle" threshold, even if the IACV is closed. I blame the bouncing on the valve being stuck in the closed position, not responding to the normal signal used to open it slightly - thereby raising the idle speed. if the valve is stuck, the signal will continue to increase as the idle decreases. eventually the signal is significant enough to open the sticky valve, however given the strong signal, it opens too far - the idle springs up, and the valve is closed immediately, suffocating the engine. Honda-Tech Member
Join Date: Jan 2011 Location: Idaho Posts: 185 Likes: 0 Received 0 Likes on 0 Posts Wood chip!? LMFAO!!!, that is great haha! How the hell?? LOL Honda-Tech Member
Join Date: Jul 2008 Location: Willows, CA Posts: 555 Likes: 0 Received 0 Likes on 0 Posts Quote: Originally Posted by Eighty-Nyne Anyone have any tips for removing the two vacuum lines. Mine are freaking warped on there. I tried everything to get them off. Should I try a chemical or is there a special tool? Quote: Originally Posted by Scrpn17w Get a pair of pliers, grip on the line where it would be "mated" to the metal, and rotate the pliers (and the line) around the pipe. Should break it free. That always works for me. And if you want to be more gentle and preserve the hose, you can wrap the tips of your pliers or the vice grips in duck-tape... Honda-Tech Member
Join Date: Aug 2012 Posts: 10 Likes: 0 Received 0 Likes on 0 Posts awesome post good looks Honda-Tech Member
Join Date: Jul 2013 Location: south MS Posts: 30 Likes: 0 Received 0 Likes on 0 Posts Ok so i had already done this and its got this exact problem... Any ideas? Pm me plz might be easier than finding the response here Honda-Tech Member
Join Date: Jun 2003 Location: Taylor, Pa, USA Posts: 987 Likes: 0 Received 1 Like on 1 Post Look for Vacuum leaks. make sure your 02 sensor is working. it could also be your map sensor Trial User
Join Date: Aug 2013 Posts: 1 Likes: 0 Received 0 Likes on 0 Posts Quote: Originally Posted by tienzien Well, I've been searching and asking, but there are still no answers. Its all for MPFI model but mine is a DPFI. Basically this is just to show you where to locate it on your model because the placement is different. My symptom was when my car run cold everything is normal, but once it's warmed up the idle jump up and down like crazy. This fixed the problem and hope it helps.
Put back in reverse order of removable. Thanks for looking. Thanks a lot guys, I cleaned everythink now it works perfect in idle Honda-Tech Member
Join Date: Nov 2013 Posts: 39 Likes: 0 Received 0 Likes on 0 Posts i know there is no fitv on pgm-fi injection so what's controling the idle on cold starts ? Keyboard Humorist
Join Date: May 2002 Location: Granada Hills, Ca, USA Posts: 9,814 Likes: 0 Quote: Originally Posted by smichka i know there is no fitv on pgm-fi injection so what's controling the idle on cold starts ? Wood chips. ... ... ECU does open loop on cold start. Trial User
Join Date: Aug 2015 Posts: 3 Likes: 0 Received 0 Likes on 0 Posts I thought I could add a tip that I wish I knew before I replaced the IACV after a cleaning did not fix my surging idle on my DPFI. My symptoms were a hunting/surging idle at hot. I cleaned the IACV, replaced the IACV $$$, replaced the MAP sensor, O2 sensors, burped the engine multiple times, and cleaned the throttle body. I had given up when I found this
video. Basically the guy only solved this problem after removing the dashpot, but realized the issue returned when he tightened the nut on the throttle plate. I decided to give it a shot. After loosening the nut by maybe 180 degrees my idle returned to normal. I almost cried. Honda-Tech Member
Join Date: Apr 2020 Posts: 6 Likes: 0 Received 0 Likes on 0 Posts Thanks it work my d15b was choking...when running at normal temperature (staling on acceleration)REMOVED MY IACV LIKE THE PICTURE CLEAN IT WITH CARBURATOR CLEANNER! MANY THANKS FURUM HONDATECH Thread Thread Starter Forum Last Post vtec5genhatch Honda Civic / Del Sol (1992 - 2000) 5 03-17-2013 08:25 AM SoB NiG Honda CRX / EF Civic (1988 - 1991) 6 01-21-2010 07:23 PM Highlifer Honda Civic / Del Sol (1992 - 2000) 1 08-04-2007 08:12 PM E-brake or Handbrake Honda Civic / Del Sol (1992 - 2000) 17 01-13-2004 04:56 AM b18c195 Forced Induction 3 12-20-2003 03:39 PM 89, air, civic, clean, coolant, del, door, filter, h22, honda, how, howto, iacv, panel, sol, warped What are the symptoms of a failing idle air control valve?Common signs include irregular or unusually high idle speed, the Check Engine Light coming on, and stalling while idling.. Irregular idle speed. ... . Check Engine Light comes on. ... . Engine stalling.. How do you unclog a IAC valve?Here's what to do:. Locate your car's idle air control valve. ... . Remove the filter box.. Remove the air duct, including any PVC hose.. Disconnect the air duct from the throttle body.. Find the opening to your idle air control valve. ... . Clean the hole with throttle body cleaner.. Can you just clean IAC valve?How do you clean an IAC valve? After relocating the IAC valve, you need to unscrew it and detach all the wires. You can clean it by soaking it in gasoline and blowing compressed air into it. Then, reattach it with the screws and reconnect the wires.
|
1991 honda civic idle air control valve
Related Posts
Copyright © 2024 ketiadaan Inc.
