Question about 1998 Honda Civic

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How to clean idle air control valve 1998 honda civic lx

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: HOW DO I BLEED A COOLING SYSTEM 98 HONDA CIVIC

I believe the previous solution is confusing your AC system with your cooling system. Trapped air in the coolant is unlikely to occur anyway.
Check rubber hoses around the intake. Look for loose clamps or collapsed hoses that can leak air into the intake bypassing the throttle; a vacuum leak.
If OK, locate the engine temperature sensor for the engine control system. (Look in a parts catalog or service manual for the car). It may be defective. I'm assuming from your OP that the Engine light is not staying on. If it does stay on, there may be a trouble code saved in the engine control computer.

Posted on Oct 20, 2008

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SOURCE: car idles up and down only in drive gears not in p or n

iac are are common problem but verify there are no vacuum leaks first

Posted on Apr 29, 2009

shadtremonky
  • 353 Answers

SOURCE: when the car is in perk the engian rpm's reve and

check the throttle position sensor

Posted on Aug 07, 2009

  • 491 Answers

SOURCE: Replace crankshaft position sensor

Remove the left front wheel....(drivers side). Remove all accessory belts. Remove the crankshaft shaft pulley.......remove the plastic lower timing belt cover.....and there it is! It is mounted with one bolt.
The wiring runs down the right side of the timing cover while looking at it from the drivers side of the car.

Posted on Aug 17, 2009

Testimonial: "I ended up having my mechanic do the work. He did say he had to move all those parts to get to the sensor. "

  • 289 Answers

SOURCE: 1998 civic lx check engine light on. Midas says

hatservice light is triggered by the odometer. there is no problem. they just want you to go get service so you can be fleesed! If digital dash, get in car,prewss odometer trip reset and hold. turn ignition on but do not start the car, wait 10-20 secs, turn ig off release the od. trip reset button. start the car!

please vote

Posted on Aug 29, 2010

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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

1 Answer

Replaced engine and now have idle surge


idle air control valve or iacv is most likely your problem. common on civic's you need to do a search to find out where it is because it is different depending on what model you have. take it off and clean it with brake clean and put it back on with a new gasket.

Apr 13, 2014 | 1998 Honda Civic

1 Answer

Why my 1998 Honda civic the rpm geos up and down


This could be many problems:
A vacuum leak somewhere.
The Idle Air Control Valve needs to be cleaned (I just did this last night)
Could be fuel delivery problems (injectors gummy, butterfly valve in air intake needs to be clean).

Aug 06, 2013 | Honda Civic Cars & Trucks

1 Answer

Idle fluctuates severly on 1998 honda civic


This problem can arise due to the following reasons:
- Air leak in the intake manifold.
- Vacuum hose leak.
- Throttle body gasket leak.
- Idle speed control valve stuck open due to the carbon deposits.
- Valve clearance too less.
- Ignition system faulty. (shorted spark plugs, spark plug wires, ignition timing too late or too early).
- Fuel injectors faulty.

May 27, 2013 | 1998 Honda Civic Coupe

1 Answer

To repair idle air control value


Hey i fixed mine yesterday i cleaned the idle control valve selenoid i used i sensor cleaner spray and it really worked i dint wanna spent 170 bucks to buy a new 1 and i did that and u can see me like driving everywhere with it and it goes soommmmmmm ':)

Jul 15, 2012 | 1998 Honda Civic

1 Answer

Have 1988 honda civic that is surgeing while in park


The surging is related to your Idle Air Control Valve (IACV), it adjusts idle based on coolant temperature, your coolant could be low or your IACV could be bad.

Jun 20, 2010 | 1998 Honda Civic

2 Answers

I have a honda civic lx 1998 I need to know what the troubleshooting code P1399 means? The engine number is D16Y7


Get your self a EGR valve it is sticking or the EGR port is blocked i can tell you how to test it you have a volt meter but i am 100% THAT WHAT IT IS
Code P1399 is a pending misfire code.
HOW TO TEST

1. Check EGR position sensor voltage on the White/Black wire at idle - look for 1.1 - 1.2 volts with the EGR valve closed. If the EGR position sensor voltage is higher than 1.2 volts, the EGR valve is stuck open.

2. Can unplug the EGR valve and apply power to the terminal on the EGR valve that the Pink wire would normally go to and ground the terminal on the EGR valve that the Black wire would normally go to and see if the engine stalls at warm idle.

Oct 14, 2009 | 1998 Honda Civic

1 Answer

Idle surging


Consider replacing the rotary idle air control valve, and clean your throttle body.

Feb 21, 2009 | 1998 Honda Civic

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