Question about 2000 Honda Accord

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2000 Honda Accord EGR Valve Error P0401

Check engine light "ON"
took to auto zone error P0401
replaced EGR valve
light still on

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  • epkc2000 Nov 08, 2008

    Same problem, the mechanic has replaced the valve once, check engine code came back. They cleaned new EGR valve 3 times, check engine code still says EGR valve problem. They replaced valve again. Check engine light came back on only after driving car for about 1 mile.

  • fandj Nov 16, 2008

    I have changed the EGR twice. Have cleared the code by code reader and by disconnecting battery. Have also put decarb into vacuum lines and have cleaned the intake for carb. build up but like keeps coming back. I have not tried just pulling the fuse but will. What else can I do.

  • BMW760Li Jan 13, 2009

    I have a 1997 Honda Accord Special Edition, my check engine light has been on after just replacing my EGR valve, I have driven my car over 200 miles beacuse I was told the check engine light would go off once it was driven 200 miles. Well it's still on. Why? I need my emissions sticker. Help I want the light off.

  • Anonymous Mar 20, 2014

    DTC code is P0401

  • Anonymous Mar 25, 2014

    check engen on obd code p0401 and p0171

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4 Answers

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  • Expert
  • 48 Answers

Jason,
-after you change the part you have to reset/clear the code

-this can be done by either:
(1) using the OBD2 code reader that Autozone used OR since option 2 (below) is very quick
(2) disconnecting the battery for about 30 seconds (this will delete all codes/radio presets/etc) but it will also clear the 'check engine' code
-this is what I do AFTER i write down my radio station presets :)

-hopefully the new EGR valve resolves your issue after you CLEAR the code
...but that code just means a an insufficient amount of Exhaust Gas recirculation (pressure difference) used to keep the emissions in check
-if it comes back, then there are a few other fixes to try also

-let me know if you need further assistance
-please remember to rate me `fix-ya`if it works
thanks

Posted on Nov 03, 2008

  • michaelrvald
    michaelrvald Nov 30, 2012

    what other fixes are there? i've had my egr changed twice and still keeps coming back.... my last mechanic took the whole thing apart and cleaned it(it was a 4hour job) after 2 days light is back on! help!

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I had the same problem but only had to replace the PCV valve and then pull the fuse for the clock out and replace after 30 Seconds. The light has not come back on after 2 days of driving.

Posted on Nov 12, 2008

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  • Honda Master
  • 545 Answers

Change egr and clean egr tunnel in intake manifold.

Posted on Mar 10, 2015

TSB at dealer...changed mine for free

Posted on Nov 09, 2008

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1 Answer

Hi, I have a 98 Honda Accord Ex V6 that showed the P0420 code and I was told that the catalytic converter needs to be replaced. So I replaced it and the check engine light came on with the P0401 code. I...


The error code p0420 does not rise only due to faulty catalytic converter but may also rise due to one of following reason:

1. Faulty rear O2 sensor

2. Damaged O2 sensor wiring

3. Exhaust leak

The error code p0401 indicates faulty Engine Gas Recirculation (EGR) valve. The remedy to the problem is:

a. Replace EGR valve

b. Repair damaged wiring of EGR valve

c. Clean the EGR valve tubing

Jun 27, 2013 | Cars & Trucks

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I have a 1999 Honda accord the check engine light is on took it to auto zone and they gave me a p1402 code. What does this mean??


EGR valve is not function (Stuck)
Need to remove and clean. If broken replace new one.

Mai Lor

Feb 22, 2013 | Cars & Trucks

2 Answers

'01 Honda Accord, EX-L, V6, Code P0401 comes up at Auto Zone Is this a DIY job? Fairly handy


code P0401 is an EGR code.
which is insufficient EGR (exhaust gas recirculation) flow.it is quite common for people to just replace the EGR valve.



You can try doing it your self.:----
To troubleshoot these issue and solve it yourself.I suggest you to go through few help links related to
OBD code P0401:-----
Click the link below:-----


1997 Chrysler Sebring: OBD Error Code P0401?

http://howtobyme.blogspot.in/2012/06/1997-chrysler-sebring-obd-error-code.html

----------

2004 Hummer H2: OBD Code P0141?

http://whoisbyme.blogspot.in/2012/06/2004-hummer-h2-obd-code-p0141.html

-----------

DTC Trouble Code P0401?

http://schematicsdiagram.blogspot.com/2012/01/dtc-trouble-code-p0401.html

-----------
These will help.
Thanks.

Nov 28, 2012 | Honda Accord Cars & Trucks

2 Answers

CHECK ENGINE LIGHT ON.


remove the EGR valve and clean the carbon from the port it is connected to, they are known to get clogged up, you may also have a bad egr valve.

Oct 25, 2012 | 2000 Honda Accord

1 Answer

My engine light is on so i took an OBD reading and it showed the error codes P0401, P0420 and P0133. What do I need to fix?


P0401 is EGR valve, low circulation detected.
P0420 Catalyst system.
P0133 is O2 sensor bank 1 sensor 1.
All these codes are emissions related, so i would start with the EGR valve, it's probably clogged with carbon. The catalytic converter could be also, check that for excessive backpressure. The oxygen sensor can be tested, replace if needed. Good luck, i hope this helps.

Jul 29, 2011 | 2000 Honda Prelude

3 Answers

Whats does code P0401 mean ??


Hi,

P0401 means insuffient EGR flow:

EGR stands for Exhaust Gas Recirculation, which basically sends some of the exhaust back into the engine cylinder again. Your error means that there isn't enough of the exhaust gas making it back to the intake manifold.
The first thing I'd check is the tubes coming off of the EGR valve to make sure they aren't clogged or broken. Then I'd check the EGR valve itself and the throttle body. The problem is usually:
1.) Carbon buildup causing a clogging.
2.) Broken hoses.
3.) Broken Valve.

Best regards.

Oct 28, 2010 | 1996 Honda Accord

1 Answer

Where is the EGR valve location on a honda accord ex 1999.


Here is a picture of where the EGR Valve is located. Replacing it is fairly simple and straightforward. A vacuum line and a couple of bolts. You'll see what you have to do when you look at it.

If you are replacing the EGR Valve due to the Check Engine Light (MIL) being on with a DTC P0401 then I suggest contacting your Honda Dealer. There was a Product Update Campaign (PUD) in the fall of 1999 that corrected the problem.

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Thanks. keep updated for any more query.you can rate this solution and show your appreciation.

Sep 21, 2010 | Honda Accord Cars & Trucks

2 Answers

My check engine light and TCS light came on. Code


P0401: Isufficient Flow Detected in EGR system.
-clean the EGR port with the carburetor cleaner.
-clean the EGR passage inside the EGR valve with the caburetor cleaner.
Reset the light, if the light still coming back, then replace the EGR valve.

Apr 26, 2010 | 2000 Honda Accord

2 Answers

Check engine light comes on and off, auto zone test read back EGR flow insufficient/manufact.specif.DTC/see service manual.what does any of that mean?HONDA ACCORD 4CYL.2001


The EGR valve helps your car more efficiently and completely burn fuel by recirculating a portion of your exhaust and running it through the combustion process again. When the EGR valve goes bad, it must be replaced.

The EGR valve, or Exhaust Gas Recirculation valve, is a vacuum controlled valve which allows a specific amount of your exhaust back into the intake manifold. This exhaust mixes with the intake air and actually cools the combustion process. Cooler is always better inside your engine. The exhaust your EGR valve recirculates also prevents the formation of Nitrogen related gases. These are referred to as NOX emissions, and are a common cause for failing emissions testing. Unfortunately, your EGR valve can get stuck, causing NOX gases to build up. You'll know if your EGR valve is stuck or malfunctioning because your car will experience symptoms like rough idle and bucking on acceleration.

Here is a picture of where the EGR Valve is located (Accord 1999). Replacing it is fairly simple and straightforward. A vacuum line and a couple of bolts. You'll see what you have to do when you look at it.

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If you are replacing the EGR Valve due to the Check Engine Light (MIL) being on with a DTC P0401 then I suggest contacting your Honda Dealer. There was a Product Update Campaign (PUD) in the fall of 1999 that corrected the problem.

Another times, the clean is the solution...I hope help yoiu with this. Good luck, and remember rated this help.

Sep 03, 2009 | 2001 Honda Accord

1 Answer

2000 Accord LX, 4 Cyl. check engine light and error codes P1457, P1739


A very common late 90's code, P1457 is a failure in one of the evap system solenoid valves. There are 2 culprits, the Vent Control Valve & the 2 Way Bypass Valve. So, start working with those and see if you can get the 1457 code off of it.

I also looked around about the 1739 code as well which a transaxle error. However, I've found that there has been more than enough reported cases of problems of the such. Take a look at this link, and do a little reading.

http://www.hondacarforum.com/honda-2/13499-trouble-code-p1739.html

I hope this helps you out.

Sep 22, 2008 | 2000 Honda Accord

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