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My honda civic that has a B16a5 engine is always hunting why?

On cold starting it starts to hunt between r.p.m range 1500 to 2200. could it be the air corrector screw on the throttle body or is it something else?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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HondaAl
  • 72 Answers

SOURCE: Honda stationary engine hunting 5HP

The IAC, (Intake Air Control valve) is a rotary valve that binds with carbon build up. the valve is usually on the bottom of the throttle body, has two small coolant hoses going to it.

Posted on Apr 23, 2009

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  • 89 Answers

SOURCE: Suzuki Swift 1988 GTi engine hunting problem

check for a vaccum hose disconnected,check air filter casing secure

Posted on Jul 14, 2009

SOURCE: Air condition don´t start, a honda civic

Air conditioning systems sometimes leak down and won't turn on when the refrigerant levels are too low.

Lift the hood and listen to the A/C compressor while someone inside the car turns it on.

Does the compressor engage for a second or two and then shut off?
If it does....you need to have your system checked for leaks and recharged.

If the compressor never comes on. Look at the A/C compressor relay. It should be under the hood in a little fuse box with other relays and fuses. When you find this relay you need to see if it works. You can buy a replacement relay and swap it or take it to a parts store and have it checked. Relays are 10-30 dollars and you should have three or four relays of the same type so a real cheap test is to swap a identical relay from an electric window or a defroster. You should see them sitting right next to the A/C relay if you have them.

Good luck and be careful!

Posted on Dec 11, 2009

  • 784 Answers

SOURCE: engine runs and idles fine, with quick

The fuel filter needs to replaced first. If the problem persists then next thing is the fuel pump for a replacement.

Posted on Dec 27, 2009

  • 1 Answer

SOURCE: VW polo 1.0 2001 (6N2) Hunting problem

wear r the sheer bolts on a vw polo 1;0 2001

Posted on Jan 15, 2010

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1 Answer

I have a 99 civic 4 door and the engine surges at idle


hot engine or cold, or both???????????????????
surging or hunting idle is complex but for sure the ECU has lost control of idle speed , there are 2 macro reasons, (vast causes)
1: ISC is stuck (in non SAE terms, the idle speed control valve ) is stuck.
2: engine is missing cause the ISC to GO NUTS trying to control
idle and can not.. the 50 reasons, , have list ask.
we do tests to find out if either or both the above are bad.
do you want tests, or guessing>???

Jan 22, 2014 | 1999 Honda Civic

1 Answer

Idle up down


hunting or surging ilde. name the 2 RPMS, low and high , is it hot or cold engine this issue.? 400rpm or 1000 or 2000 all are diff.causes.
no year, stated. so cant help.
but ill answer in the generic,
1: the ECU (got a carb,? )
the ecu controls idle speed at all times.
if not , there is a problem (you)
A: air leaks in the induction will make motor race at some point the ECU/ISC loses control. and hunts. trying hard to correct it.
b: egr stuck open idle too low, iSC cant correct it,, bad EGR.
c: engine EFI running way too leak starving for fuel so it hunts for 2 reasons < ISC hunting, and lean does that.
lean is gross power loss and opening throttle bogs the engine.
so is double bad. ISC makes it worse,

all this breaks down to 2 reasons.
1: ISC bad. in some way (gummed up. or restricted inside)
2: bad fueling or air leaks. vacuum leaks.

try answers , the hot cold question and the 2 speeds, of the hunt.
lowest rpm and highest of the hunted range of RPM.

Nov 23, 2013 | Honda Civic Cars & Trucks

1 Answer

89 Honda civic engine loops when warm


Idle hunting is a favorite hobby of Hondas. The most common cause is a bubble in the coolant - if the coolant is drained and refilled without bleeding the system it will do that. Look at the housings where the radiator hoses attach to the engine. On top of one of them will be a nipple, like a brake bleeder nipple but larger. Open it half a turn and close it when a steady stream of coolant comes out.

Sep 09, 2013 | 1989 Honda Civic

1 Answer

I wish to adjust the idle tickover speed a wee bit on a 2007 Ford Transit 2.2 Duratorq engine. It is currenlty ticking over at approx 800 rpm and is hunting at this rev. If I could raise it a wee as I do...


First ensure that the throttle interior is really clean, a surface layer of grime can upset the ECU's ability to meter and govern the air entering the engine. If the throttle body interior is found to be really oily and dirty check on the idle air control valve and make sure that it too is cleaned up. Next put the ignition switch in position 2 (on, but no start) and depress the accelerator fully and release. If there is an issue with the throttle position sensor this procedure can help the ECU relocate the throttle plate position. Start the engine and if it is still hunting locate the air mass meter (AMM) on the air ducting immediately next to the air filter and disconnect the electrical connection. Does this remove the hunting aspect?... the rev speed might change but for the moment concentrate on the evenness of the tick-over. If the idle is even when the AMM is disconnected but hunts when connected then look at replacing your AMM. Try spraying the AMM with no residue electrical cleaning spray to see if this improves matters.

Dec 02, 2010 | Ford Transit Connect Cars & Trucks

1 Answer

1992 civic automatic idles okay when cold engine, but idle fluctuate 800 to 2500 RPM when engine hot


" Hunting" is usually indicative of a faulty temp sensor or air flow meter telling lies to your computer.
It can also be vacuum leaks, however these are usually apparent even when cold.
Male sure you don't have any air locks in your cooling system.

Mar 26, 2010 | 1997 Honda Civic

1 Answer

White smoke wen starts from cold an hunts 20 secs.


sounds to me like your idiling too high

May 28, 2009 | 1998 Volkswagen Golf

1 Answer

Honda stationary engine hunting 5HP


The IAC, (Intake Air Control valve) is a rotary valve that binds with carbon build up. the valve is usually on the bottom of the throttle body, has two small coolant hoses going to it.

Apr 07, 2009 | 2001 Honda Accord

2 Answers

Well. when i start my honda civic 1996 ej9, and when it eventually warms up it starts to aggressively idle! the needle constantly goes up and down. drives fine though. taken to several garages but cannot...


Have they checked the O2 sensor, some times the engine will "hunt" if the car isn't getting a consistent signal from the O2 sensor. A car may "hunt" if there is some kind of interruption or disturbance to airflow.. check your air intake as well, i had a friend who had a dead rat in his.

Nov 04, 2008 | 1996 Honda Civic

1 Answer

1992 civic hatch acceleration problem


it might just be your timing i had the same problem with my 94 hatch did have any power on first or second just had a friend adjust the timing and werks just fine.

Oct 02, 2008 | 1993 Honda Civic 4 Door

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