Question about 1999 Honda Civic

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1!999 civic lxi has rough idle, have replaced servo unit but the idle still rough

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I would recommend that you have the throttle body cleaned out, and replace the TPS (throttle position sensor) sensor.

Posted on Mar 16, 2011

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Posted on Jan 02, 2017

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Honda crx with auto transmission idles roughly in drive or reverse. AC on makes it worse.


There are two coolant lines that connect to this Honda IAC to help quiet the operation of the valve. The part number for a OBDI 1992-1995 Honda Civic Idle Air Controller is 36450-P28-A01. While the OBDII version of this valve is 36450-P2J-J01, and the two units are very similar in design and execution. The EACV or Electronic Air Control Valve is a big part of maintaining your Honda Civic idle. If you've checked your IAC and your Honda still suffers from a surging idle, check your FITV. This Honda Idle Air Controller or IAC is under the throttle body and incorporates into the throttle body passages o locate your Fast Idle Thermo Valve, remove the intake snorkel and locate the FITV beneath your throttle body opening. If your SOHC engine is still having problems, check our guides above on how to check your FITV as well as your IAC. To check this operation, remove your air intake pipe and use your fingers to plug the passages in the lower left hand corner of your throttle body opening. If your idle surge does not go away, unplug your Idle Air Control valve and if that stops your idle surge, your IACV must be replaced. Follow our instructions on how to replace your Honda Civic Idle Air Control Valve. Need to raise your Honda Civic idle or having problems maintaining idle? You can adjust the base idle by unscrewing or screwing in the Idle screw on your throttle body. This screw allows air to bleed into the passages on the backside of your throttle body, as shown above. To learn how to adjust Honda Civic idle speed, you will not need to remove anything. With a standard screwdriver, simply locate your throttle body and Idle screw.

Sep 28, 2016 | Honda Cars & Trucks

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Runs rough when it's warm. comes and goes. has a 2.7. and then a 99 dodge carvan with a 3.3 does the same thing.


Chrysler Sebring Questions - Car running very rough ...

www.cargurus.com > Questions > Chrysler > Sebring

CarGurusMar 27, 2011 - It seems after car gets to a certain temperature it runs very rough. ... 2011 at 12:16 PM about the 1998 Chrysler Sebring 2 Dr LXi Coupe ... it.one day it washot out and it was running sluggish with rough idle.and ... I changed the altnator and battery its runs like its brand-new.now ... 2002 Chrysler Sebring LXi.

Chrysler Sebring Questions - Engine Power Loss After Car ...

www.cargurus.com > Questions > Chrysler > Sebring

CarGurusNov 3, 2011 - Engine Power Loss After Car Is Warmed Up - Major loss of power after car has ... When vehicle is cold runs ok, sometimes a little rough but not bad. Full power. Allowed vehicle to run for over 45 minutes last night at idle, died on its own, car sat approximately 20-30 minutes. ... 2002 Chrysler Sebring LX.

* Chrysler Sebring/200 Convertible Club * • View topic - Rough ...

www.sebringclub.net/board/viewtopic.php?p=69097

Dec 29, 2006 - 5 posts - ‎3 authors
However, the vehicle still suffers from rough idle under certain conditions: ... been resolved (I don't think he noticed that it happened only when warm though). .... The test will tell you its general condition without having to dig it out of the fender, ..... Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group rough ...
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Low idle rpm
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Jan 01, 2016 | 2002 Chrysler Sebring

1 Answer

Rough idle on 1986 honda civic 1.5 carb


CHECK FOR VACCUM LEAKS , BROKEN HOSES , OR DISCONNECTED HOSES ON THE MANIFOLD OR CARBURETTOR .EVEN A DIRTY CAB CAN CAUSE THIS SYMPTOM .

Jul 31, 2012 | 1986 Honda Civic

1 Answer

I have trouble in my rpm. i changed already the servo sensor but still have the a little ups and downs.


while it;s idle apply brake two or three time then check if the RPM is ok then replace brake servo diafram . atherwise check Vacum leakage form hoses.

Jun 19, 2011 | 2002 Honda Civic

1 Answer

I bought my 1997 honda civic lxi last 2 weeks ago, while driving, its temperature getting higher, sometimes the idle is not normal (fluctuating), theres so much white smoke in the muffler when...


Possible head gasket put in wrong or possible. make sure radiator cooling fan is coming on. The smoke could be remaining from the water standing in the exhaust if it is fixed it will take a while for that to burn off. Check the timing on the timing belt. change your thermostat. Have your radiator checked for flow. If it is plugged replace it. Intake could be leaking to cause the fluctuating idle. The throttle body can cause the idle to search. Also the timing off can do that.If possible do a combustion leak test in the coolant

Dec 09, 2010 | 1997 Honda Civic

1 Answer

94 Honda Civic DX idles low/rough at a stop


Check for split hose's around the inlet manifold.Sounds like a vacuum leak.
Hope this helps.

Jun 28, 2009 | 1994 Honda Civic

2 Answers

Running rough, wont idle, bad gas smell


Possible injector failure. locate by disconnecting injectors one at a time. The one that makes no change is the questionable. Status of spark plugs need chkg also. pull the plugs an the one that looks washed is questionable good luck

May 22, 2009 | 1989 Honda Accord 4 Door

1 Answer

Idle varies way too much


try replacing your map sensor or your throttle position sensor.

Nov 23, 2008 | 1990 Honda Civic

1 Answer

Idling problem when ac turned on honda civic lxi 1999


Hi,

To my knowledge (at least in my country), some Honda Civics have a compensator solenoid the pushes on the throttle that adjust the engine's RPM to its standard idling when the A/C compressor is activated. Technically, this solenoid is nothing more but a coil and a plunger. When the compressor runs, the same relay activates this solenoid and pushes the plunger forward increasing the RPM. Pls check/clean/adjust/replace as deemed fit and necessary.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Sep 23, 2008 | 1999 Honda Civic

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