Question about 2001 Honda Civic

1 Answer

Car idle fluctuates at stops. goes from 850 to 1500rpm about 3 or 4 times then stops, i think needs to relearn idle but dont know how to do it, everything on engine is new so its no bad sensor etc

Posted by on

  • m_ebel Jul 19, 2009

    already did all that brand new engine every little part on it is new, no distributor on this, so im clueless now

  • m_ebel Jul 20, 2009

    today i reset the computer still doing it, i have a leak in my catalytic converter could this be doing it?

×

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 51 Answers

Try checking air filter then pcv valve and all vacum hoses

Posted on Jul 19, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

How to set idle because it it too high


idle is preset uses sensors --try cleaning the throttle body use specific cleaner and same with maf sensor --also look at air filter may need changing -i would suggest the air idle control valve but your complaint is high idle not rough or fluctuating with nissian will need to do relearn when done cleaning throttle body
Idle speed to high

Sep 06, 2016 | 2006 Nissan Micra 1.4

1 Answer

What is the idle relearn procedure for 2004 cadillac cts 3.6


The idle should relearn by itself within a minute or so if there are no other problems. Was the battery changed/disconnected? Why do you think you need an idle relearn?

Nov 16, 2015 | Cadillac Cars & Trucks

2 Answers

When going around a corner car dies


have you fuel pressure check for steady pressure normally 45 to 60 lbs and steady not fluctuating.

Aug 15, 2014 | 1994 Buick Park Avenue

1 Answer

Voltage drop


u need a load test on an alternator to see if it good-partsplace dont du that-------nevr evr replace parts unless u kno solution-------u probly just had a bad throttl pos sensor or dirty idle motor------car is old so computer may hav issues -unplug it then plug in 2-3 times and see if voltage issue goes away-its like a reboot-getta haynes manual or seek out good private mech

Mar 04, 2014 | GMC Cars & Trucks

1 Answer

Rough idle after changing battery


Never heard of this excuse ,it will relearn ?? DONT THINK SO i think something has been pulled or strained on a thin rubber vacumn pipe whilst getting the battery out so have a good look and a listern for a sucking noise

Jan 29, 2014 | Toyota Tacoma Cars & Trucks

2 Answers

BOUGHT BRAND NEW BATTERY NOW CAR CUTS OFF AND IDLES REALLY LOW


WHEN YOU DISCONNECT THE BATTERY THE ENGINE MANAGEMENT SYSTEMS PCM LOSES IT MEMORY INCLUDING ENGINE IDLING.THE COMPUTER WILL HAVE TO RELEARN THE OPERATING VALUES. IF CAR DOES A LOT OF STALLING AT STOP LIGHTS AND STOP SIGNS. GO BY FORD DEALERSHIP LET THEM REPROGRAM THE PCM.PROBABLY CHARGE YOU $35.00 DOLLARS. TO REPROGRAM PCM.

Jul 04, 2011 | 2006 Ford Five Hundred

1 Answer

2002 nissan altima.stopped at stop light and engine quit.started right back but idled very low while in gear.cleaned throttlebody,now engine idle fluctuates from 500rpms to 2000rpms.has several...


when this is done idle air volume needs to be relearned .to my knowledge dealer only procedure .i could be wrong but i dont think aftermarket scanner software supports this.more good news.po420 you need a cata lytic converter.p2135 and po 123 you need a new throttle chamber assembly.

Jan 20, 2011 | Nissan Altima Cars & Trucks

2 Answers

My 2002 Ford Taurus will shutter and die when running the air conditioner and sitting idle at a stop sign or stop light. When I turn on the air conditioner the rpms will fluctuate up high above 2 and then...


the idle air control valve is responsible for engine idle.
this is a common failure on ford's. but I don't think yours is bad because it does idle high befor it dies.
you stated you had codes p0171 and p0174 these are lean codes for bank one and two, you said you found a vacuum leak and repaired it, the vacuum leak was mostly likely the cause of the lean codes, however the pcm has calibrated the fueling stategy for this lean mixture, what you need to do is erase the KAM "keep alive memory" this is done by unhooking the negative battery cable for 60 seconds, this is the only way to erase the KAM the $6000.00 machine I use wont even do it.

once the KAM is clean the computer will go into a relearn state and all operating values will be adjusted for the vehicles current condition, during this relearn session the vehicle may have some driveability issues (low or high idle, stalling, poor fuel economy) the relearn should complete within 10 minutes of idling and then 10 minutes of driving.

good luck and keep me updated

wesleyschacht@hotmail.com

Jun 14, 2009 | 2002 Ford Taurus

2 Answers

Won't idle after replacing battery, engine dies.


Hansandfranz is 1/2 correct; the car does need an "Idle Relearn", but, you do NOT need a scan tool for this. The vehicle just needs to be driven for the ECu to relearn the "base idle".
Get in, drive it down the highway. Do some passing gear downshifts. Pull off to the side of the road, let it idle for 30 seconds, repeat 2 more times. Then, try to duplicate some "in-town" (stop & go") driving, for about 15 minutes.
This will reset the "base idle", and your stalling condition will disappear. Expect to have to do this again if you replace the battery. Very common; the Computer (ECU) loses the base idle parameters when the battery is disconnected. Easily rectified just by driving as mentioned above. Feel free to comment back if you have any other questions.

Oct 16, 2008 | 2002 Toyota Camry

Not finding what you are looking for?
2001 Honda Civic Logo

Related Topics:

287 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honda Experts

yadayada
yadayada

Level 3 Expert

76630 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Kevin Daniels

Level 3 Expert

1455 Answers

Are you a Honda Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...