Question about 1998 Honda Civic

1 Answer

1998 CIVIC P420 CODE

I GET A P420 CODE WHEN THE CHECK ENGINE LIGHT COMES ON.
I CHANGED THE OIL AND IT WENT AWAY FOR SEVERAL MONTHS; THEN CAME BACK ON AGAIN. I LOOKED AT THE EXHAUST SYSTEM AND CAN NOT FIND A POST CONVERTER O2 SENSOR, BUT I AM TOLD THAT IT IS SUPPOSED TO HAVE ONE. ANY SUGGESTIONS?

Posted by on

  • 2 more comments 
  • rfawalters Jun 19, 2008

    I bought the car new in 1998; it has 176,000 miles on it now.

    on-line blogs say that that others that have the same problem have changed the Catalytic converter and O2 sensors with no good results.

  • rfawalters Jun 19, 2008

    i bought it new in 1998; it now has 176,000 miles and still runs good. that only problem is the check engine light and the P420 code. others who have had the same problem, have changed the catalytic converter and O2 sensors with no change in the light status even after it was reset.

  • rfawalters Jun 21, 2008

    i did get the service manual and found that out.

    thanks anyway.

  • brian c
    brian c May 11, 2010

    Did you just buy this car recently?


×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

The cat is bilt into manafold and the sencer is just up abuve it

Posted on Jun 21, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Ck engine light on again..


Have your dealer look up this service bulletin.
NUMBER: 18-037-11
GROUP: Vehicle Performance
DATE: August 02, 2011
It states your PCM needs reprogrammed with the error code you are receiving P06DE. Was a pretty common problem back then.

Mar 24, 2015 | 2011 Dodge Avenger Heat

2 Answers

Check Engine Light. I have p420 P440 and P446 codes


You need a Catalytic converter and possibly a Evap. cannister

Oct 04, 2014 | 2003 Toyota Corolla

2 Answers

I have a 2004 Honda Civic VTI, the engine checklight came on and I went to 3 different computer diagnostic centres and the scan showed VTEC system failure. I changed the VTEC solenoid, change vtec pre


What is wrong is that you changed a part

You failed to follow any trouble charts because
you have none

The sensor was most likely okey & just doing it's
job of reporting a fault

You could have a mechanical problem such as a timing
belt issue or worn VVT Actuators on the end of the cames

You have to diagnose code related issues & then find out
why a sensor reported as it did

Even if you scoped the sensor you would most likely
assume it was bad,not so,have to keep thinking why the
data was bad

You need professional tools & look at several pieces of data
overlayed on a big sceen at one time

Repair shop or dealer for that issue

Nov 27, 2012 | 2004 Honda Civic

1 Answer

The lifters colapse when the engine is shut off for a period of time and they take several mins. of running to pump back up. This engine has 117000 miles on it but it has had EXCELENT maintenance. It is...


it sounds like your oil pump is not working good. check oil pressure at cold and what weight oil are you using. it may be too heavy for it to get up to the top of the motor quick.if there was any build up in the head when you changed the lifters you may want to flush the oil system good then put fresh oil back in

Dec 16, 2010 | Ford Freestar Cars & Trucks

1 Answer

I changed the oil and kno it wont start the check engine light comes on for 5 flashes and dosent come back on


YOU HAVE TO HOOK UP DIAGNOSTIC SCANNER TO SEE WHAT TROUBLE CODE YOU ARE GETTING.CAUSING CAR NOT TO CRANK.YOU PROBABLY SET OFF CAR THEFT SECURITY SYSTEM.

Jun 08, 2010 | 2005 Honda Civic

1 Answer

How do I reconnect the check engine light. Is it just a bulb?


If your check engine light comes on then it will definitely not pass.There is no such thing as a code that says your sensors are bad. I could help you out more if i had the codes.If your sensors were bad you would get a heater failure code.But then again it could be anything.You need that code.

Feb 19, 2010 | 1998 Honda Civic

1 Answer

2001 Dodge Caravan Check Engine Light wont go away


i would try a coil pack maybe you got a bad one . did you clear the code after you changed the parts . disconnect the batt for ten sec

Oct 20, 2009 | 2001 Dodge Caravan

3 Answers

1998 Prelude VTEC P1361 code, what's the most likely failure.


Need a clear question and better info. However, based on the little that was posted...

Code P1361 is ignition coil circuit low. You'll have to do some electrical troubleshooting to locate the cause.

Low oil will also can also result in the oil pressure sending unit cutting power to fuel pump relay. This is done to prevent engine damage due to low oil.

May 16, 2009 | 1998 Honda Prelude

1 Answer

Check engine light has come back for the second time after having change the air filter and resetting. Now receiving a code: P0101 What do I do now?


Probably carbon build up on a sensor. Had this happen on a Ford Expedition. I put it on the highway and hammered it several times. It blew the carbon off the sensor. Light went away.

Apr 25, 2009 | 2003 GMC Yukon XL

2 Answers

CHECK ENGINE LIGHT COMES ON


this has nothing to do with the oil, it does indicate that a problem has occurred in the electronic engine controls, have the system tested, there will be a trouble code stored for the event.

Dec 17, 2008 | 2004 Mercury Montery

Not finding what you are looking for?
1998 Honda Civic Logo

Related Topics:

307 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honda Experts

yadayada
yadayada

Level 3 Expert

60960 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

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

Answer questions

Manuals & User Guides

Loading...