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Car idle at 500rpm! wft

 
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Old 02-20-2011, 01:43 AM
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Car idle at 500rpm! wft

Car idle at 500rpm while on neutral. Almost feel like its stalling. It does this when I'm stepping on the clutch.. I checked iacv and looked at other idle post. Idk whats causing this. It gets frustrating and annoying so any thoughts and advice is appreciated.
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Old 02-20-2011, 02:49 AM
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Re: Car idle at 500rpm! wft

anyone
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Old 02-20-2011, 02:53 AM
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Re: Car idle at 500rpm! wft

How about a tune up?
Cap
Rotor
Wires
Spark plugs???
Clean out throttle body
Just things you should check. Let us know what you find.
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Old 02-20-2011, 03:14 AM
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Re: Car idle at 500rpm! wft

Tune up was done a month ago. Everything that you mention was done on spec. Any other ideas?
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Old 02-20-2011, 04:48 AM
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Re: Car idle at 500rpm! wft

my 5gen idles at 500 rpm...it's running fine for me
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Old 02-20-2011, 10:37 AM
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Re: Car idle at 500rpm! wft

Okay...if everything is good with that..... trying cleaning out egr? Iac?
You can always adjust idle screw or throttle plate screw.
Idle screw is on the front face of throttle body... use flat head screw driver turn it slowly cc while car is idling and warmed up. Throttle plate screw is tough because of the angle. Looking at the throttle cable where it hooks in to throttle rotor underneath the is an allen key bolt 8mm and a lock nut 7mm wrench can be used. Crack the nut spin bolt to open plate lock nut ...double check that lock nut.... cant tell u how many times I have forgotten that lol. Lemme know if that helps.
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Old 02-20-2011, 10:38 AM
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Re: Car idle at 500rpm! wft

700-900rpm is where idle should be. When I tune or do work to h motors I like to set idle at 1k rpm
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Old 02-20-2011, 11:43 AM
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Re: Car idle at 500rpm! wft

sounds like it could possibly not be getting enough fuel. could be a clogged filter, maybe you could try running some fuel treatment/injector cleaner through your system. does the car start right up when you go to start it? or does it take a few cranks for it to fire up? if it takes a while to start that could also be a fuel pump going out. if it had a vacuum leak, the idle would go up and down, but this sounds like its either not getting enough air or not enough gas. check your air filter too. let us know what you find, good luck man
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Old 02-20-2011, 06:23 PM
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Re: Car idle at 500rpm! wft

Car that idle @500rpm is not normal. I've ran fuel treatments through my system a couple time this month. Idle doesn't go up and down. It stays at 500rpm while on a stop/neutral (feel like stalling almost)
And I hear that adjusting the idle screw will mess it up. Correct me if im wrong. Thanks for your input guys
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Old 02-20-2011, 06:48 PM
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Re: Car idle at 500rpm! wft

Why would an idle adjustment screw mess it up? Why would honda put it on the throttle body if it wasn't used ever?
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Old 02-20-2011, 07:25 PM
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Re: Car idle at 500rpm! wft

well if it's not stalling, but just feels like its going to then maybe you should adjust the idle screw, no it won't mess it up. I'm just wondering why if it wasn't that low before why it's all of the sudden that low now. you might want to try and do a fuel pump volume test where you see how much fuel your pump is actually pumping out.
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Old 02-20-2011, 07:29 PM
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Re: Car idle at 500rpm! wft

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Originally Posted by vtec9998 View Post
well if it's not stalling, but just feels like its going to then maybe you should adjust the idle screw, no it won't mess it up. I'm just wondering why if it wasn't that low before why it's all of the sudden that low now. you might want to try and do a fuel pump volume test where you see how much fuel your pump is actually pumping out.
Good point. I was thinking the same thing on why all of a sudden it dropped idle
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Old 02-20-2011, 07:32 PM
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Re: Car idle at 500rpm! wft

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Originally Posted by Bustr View Post
Okay...if everything is good with that..... trying cleaning out egr? Iac?
You can always adjust idle screw or throttle plate screw.
Idle screw is on the front face of throttle body... use flat head screw driver turn it slowly cc while car is idling and warmed up. Throttle plate screw is tough because of the angle. Looking at the throttle cable where it hooks in to throttle rotor underneath the is an allen key bolt 8mm and a lock nut 7mm wrench can be used. Crack the nut spin bolt to open plate lock nut ...double check that lock nut.... cant tell u how many times I have forgotten that lol. Lemme know if that helps.
Thanks. Ill look into that
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Old 02-20-2011, 08:44 PM
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Re: Car idle at 500rpm! wft

same problem here
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Old 02-20-2011, 09:01 PM
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Re: Car idle at 500rpm! wft

have you checked the "final idle problem thread"?
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Old 02-20-2011, 11:41 PM
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Re: Car idle at 500rpm! wft

Just do what I did. Replace everything to find out about low compression in one cylinder. Seriously, clean the EGR port and EGR valve then check back. I know my car idles a lot smoother when I did that. No I just gotta deal with this low compression.
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Old 02-21-2011, 05:30 AM
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Re: Car idle at 500rpm! wft

Quote:
Originally Posted by oslouie View Post
Just do what I did. Replace everything to find out about low compression in one cylinder. Seriously, clean the EGR port and EGR valve then check back. I know my car idles a lot smoother when I did that. No I just gotta deal with this low compression.
You try a valve adjustment?

Edit: for the low compression
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Old 02-21-2011, 10:03 AM
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Re: Car idle at 500rpm! wft

Low compression...uh oh. I didn't know you checked compression? What are the numbers ?
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Old 02-24-2011, 05:54 PM
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Re: Car idle at 500rpm! wft

Aight, so I adjusted idle screw and no help. It's funny how as I'm in gear and coming to a stop, car idles at 100-200rpm almost stalling. could the clutch be a related problem? It does this when clutch is apply
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Old 02-24-2011, 11:54 PM
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Re: Car idle at 500rpm! wft

500-700 RPM is normal for a 5th Gen once warmed up.
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Old 02-26-2011, 12:51 AM
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Re: Car idle at 500rpm! wft

I idle at 500. I also have an 8lb flywheel o.O

It's rare, but once in awhile mine will drop below 500 and nearly stall.

On the stock I idle'd at 700. If you continuosly drop below 500 nearly stalling, than you may have a fuel related issue, or possibly a lighter flywheel.
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Old 03-08-2011, 12:41 PM
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Re: Car idle at 500rpm! wft

my SH did the same thing and eventually the motor blew. Find out what's wrong with it soon before that happens. I did all the steps mentioned and even threw in a new clutch and nothing. So try to figure it out otherwise you could end up like me. Maybe check your dizzy to see if it's working properly or F the H.
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Old 04-30-2011, 03:15 PM
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Re: Car idle at 500rpm! wft

are you using 91 octane premium fuel? i noticed in my prelude that if i dont use premium it burns off alot faster and it idles rough
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Old 11-19-2012, 10:49 PM
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Re: Car idle at 500rpm! wft

OMG these guys on this page are making u waste money. What you need to do is find the iacv or idle air control valve that regulates how much air your car is taking in while its on. You need to find it and look for the screw on the side. Turn it clockwise because your car doesn't have enough air. Don't over do it. You only want to adjust it to where your car reaches its ideal rpm setting which should be at 1100 rpm idle. That will fix your problem for sure. I had the same problem before and its worked for me without anymore issues. Best part it cost nothing.
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Old 11-19-2012, 10:52 PM
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Re: Car idle at 500rpm! wft

Your idle rpm should be posted under the hood on the sticker. Stop listening to these weekend mechanics.
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Old 11-19-2012, 10:56 PM
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Re: Car idle at 500rpm! wft

If it continues pull the iacv out and make sure the spring is set in its proper place, if its off it will not fix your problem no matter how many times you mess with it. Use a 12 mm socket.
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Old 11-19-2012, 11:45 PM
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Re: Car idle at 500rpm! wft

OP hasn't been on here in over a year and a half. And just raising your idle to fix a low idle issue is not a smart idea nor should be recommended as the solution. Should start with the intake and cooling systems, making sure everything is clean and in check (clean throttle body, IACV, FITV, EGR, cooling system topped off, no air in cooling system, etc).
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Old 11-20-2012, 12:09 AM
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Re: Car idle at 500rpm! wft

Quote:
Originally Posted by UrbanGLude View Post
OMG these guys on this page are making u waste money. What you need to do is find the iacv or idle air control valve that regulates how much air your car is taking in while its on. You need to find it and look for the screw on the side. Turn it clockwise because your car doesn't have enough air. Don't over do it. You only want to adjust it to where your car reaches its ideal rpm setting which should be at 1100 rpm idle. That will fix your problem for sure. I had the same problem before and its worked for me without anymore issues. Best part it cost nothing.



1) this thread is almost 2 years old.

2) cold idle is 1400, warm idle is 700. not sure where you got 1100 from.
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Old 11-20-2012, 10:16 PM
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Re: Car idle at 500rpm! wft

Quote:
Originally Posted by UrbanGLude View Post
OMG these guys on this page are making u waste money. What you need to do is find the iacv or idle air control valve that regulates how much air your car is taking in while its on. You need to find it and look for the screw on the side. Turn it clockwise because your car doesn't have enough air. Don't over do it. You only want to adjust it to where your car reaches its ideal rpm setting which should be at 1100 rpm idle. That will fix your problem for sure. I had the same problem before and its worked for me without anymore issues. Best part it cost nothing.
OMG, you're a idiot....

Funny thing is, he did mess with the idle screw and checked the icav.


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And to point out what everyone else has already said - this **** is OLD.
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Old 11-21-2012, 12:52 PM
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Re: Car idle at 500rpm! wft

lmao!!!!!!
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