Question about 1991 Honda Accord

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Idle problem i have a 91 honda accord that idles up and down in rpms how do i fix it?

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  • pashenka Aug 05, 2008

    My 1991 Honda Accord runs fine in the morning drive to work (6AM) but after driving home late in the afternoon when the outside temperatures are 95-100 the idle speed surges to almost 3,000 and then drops back to almost 1,000. It keeps doing this until it is shut off and allowed to cool off. Could this be caused by the water temperature sensor sending wrong readings?

  • Anonymous Mar 16, 2014

    when my 2011 honda accord hits 3500 rpms the car bogs down



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How much is the Idle Air control valve?

Posted on Jul 28, 2008

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IAC valve. Your Idle Air Control valve has gone bad. This is an extremely common problem with these cars. I had one in my shop with the same problem yesterday.

Posted on Jul 27, 2008


$75 dollars at AutoZone

Posted on Jul 30, 2008

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Posted on Jan 02, 2017

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SOURCE: surging during warm up

there is a sensor for cold starts almost like automatic choke they are known to fail.

Posted on May 17, 2009

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1 Answer

My Honda Accord 2000 EX 2 door coupe, 3.0L, has thrown a P0505 code after I cleaned the egr port on the intake manifold. After the car warms up, the idle will bounce between 1000 rpms and 1500 rpms, up...

First check the connector and wiring. If good, remove the idle air control valve and clean the passages as well as the valve and seat. Reconnect the valve but don't install. Have someone start the car while you plug the downstream passage. The car sould idle down or stall, and the valve should retract. Remove your finger, and the valve should extend. If the car will not idle down with the passage plugged, you have a vacuum leak. If the valvedoes not react properly, check continuity of the wires to the ecu.

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1995 honda accord idles up and down when started/when cold...when driving down highway, the car will idle when in drive and the rpms will go up and down. I have to pull over, turn the car off a...

There is a coolant passage that goes to the idle control system. The idle control itself is not bad. Cleaning this passage will make it normal again. I have fixed a 95 honda accord this way, and a 97 honda accord. You will need to remover the whole assembly. Actually the whole rapair doesn;t need parts so thats good news for you. Be carefull since the idle control is made of aluminum, and can be damaged easily. I damaged the one I was working on, thankfully I also have an aluminum mig welder so I was able to repair it like new.

Nov 23, 2009 | 1995 Honda Accord

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Idle will not come down

check for vacuum leaks, that will typically cause a high idle.

Oct 26, 2009 | 1986 Honda Accord

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Surging during warm up

try cleaning the throttle body.

Apr 14, 2009 | 1991 Honda Accord

3 Answers

Erratic Idle problem in 91 accord


Apr 02, 2009 | 1991 Honda Accord

1 Answer

Can anyone tell me how to fix this problem

if its a carb model you might need to strip and refurb the carb if not buy a second hand one they are pretty cheap or it could be a choke problem

Feb 14, 2009 | 1988 Honda Accord 4 Door

1 Answer

Very low idle speed.

You may want to check your Throttle body position sensor (TPS), and/or, the idle air sensor. This is the most common cause, and in some cases, if your car is acting funny more than at just idle, your Mass airflow sensor (MAF) could be fouling.

Jan 29, 2009 | 1996 Honda Accord

1 Answer

Idle problems driving me insane

IAC -idle air control sensor!! known to be faulty in 91 accords.

Sep 17, 2008 | 1991 Honda Accord

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