Question about 2000 Mercury Sable

2 Answers

MERCURY 2000 ODB2 CODES P0400, P00A0, P0401

I am getting these codes fairly quickly after I reset the check engine light. Is the fix for the P0400 the same as for the P0401? Do I follow the same procedure (multimeter & vacuum pump)? What is the P00A0 code? I can't find any reference anywhere.

Posted by on

  • Anonymous Apr 01, 2014

    check the engine ligth

×

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 96 Answers

P00A0 is a factory readable only code (i.e. only ford dealers have the computer to read it)
the P0400 is a generic E.G.R. flow restriction code. so yes a dvom (multimeter) and a vacuum pump to diagnose it correctly, also check for loose wires as ford harness connectors are known to fail alot due to crappy phenolic content in the plastic and heat combined they can warp and / or corrode the contacts

Posted on Sep 26, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 372 Answers

The p00a0 code refers to a ford code. That code is Fuel air metering auxiliary emission controls. Most common referance to that is a dirtly throttle plate. P0400 is a EGR flow malfunction and p0401 is egr flow insufficant. I would purchase a DPFE sensor. That sensor controls the vacum to the egr controller. Its a very common problem. Replace that sensor and reset the light. All should be ok.

Posted on Sep 30, 2008

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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

My 2004 Sebring 2.4L does not have an egr valve. The engine light is on light is on with and error of p0400 . So what now?


With the code coming up for an EGR valve I would consider it unlikely that it left the factory without one as it would have had the code from day one and it would have been fixed at a service under warranty.. If you got the car second hand then it is possible that the EGR valve failed and the previous owner found it easier to blank it off to sell it . I would consider fitting a new valve and getting it working properly as it is critical to passing the road worthy certificate., performance and economy.

May 03, 2014 | 2004 Chrysler Sebring Sedan

1 Answer

What are codes p0401 and p0300 mean on a 2000 isuzu trooper


P0401 is EGR problem
P0300 is a cylinder 3 misfire.
Replace EGR valve and do a full tune-up.

Mar 19, 2014 | 2000 Isuzu Trooper

1 Answer

Need help trouble shooting 2 codes, P0401 & P0455


Google the codes

Lots to read & study

OBD2 PO401

OBD2 PO455

Think you will a repair shop to smoke the
Evap for the 455

Feb 14, 2013 | 2000 Mercury Mountaineer

1 Answer

Ford e150 codes: p0401, p1401 and p0174. read the more details to see what the symptoms are.


Stop, DO NOT replace expensive parts or O2 sensor! Ford Explorer codes p0174 , p0401 , rough idle and check engine light on. First thoroughly check all of the hoses and elbows connected to the intake and EGR (vacuum system) for splits, cracks, holes or tears, this could quickly cause these codes and fixes for less than $10. Check all connectors and the EGR valve sensor it could have a crack as well, inspect thoroughly because a split sensor could appear attached to the vacuum hoses but hoses could just be sitting there not actually attached due to a split or crack. This was my problem replaced the EGR valve sensor and the two little vacuum hoses attached to them for $50-60 with in stock parts at the local parts store. Took less than 10 minutes to replace and is easily accessible, the check engine light turned off immediately without having to reset the codes by disconnecting the battery, idle became normal and fuel efficiency better. If you have THOROUGHLY inspected every hose, connector and elbow and found no issues, clean the MAF with electrical contact cleaner ( let dry) and clean the EGR with carbon cleaner. A dirty MAF or EGR could also cause these codes to pop up. If this still doesn't work, then consider replacing the EGR, if that isn't it then try the O2 sensor. Good luck!

Jun 23, 2012 | 2002 Ford E-Series

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

2 Answers

1999 mercury sable engine code p1744,p0401. Failed e check. EGR looks new, replaced egr solenoid then cleared codes. what more can i do about the p0401 code and the p1744 code Thanks


for p0401:
In fixing this code, it is quite common for people to just replace the EGR valve only to have the OBD code return. The EGR valve is not always the culprit.
Use a vacuum pump and pull the EGR valve open while monitoring engine RPM's & DPFE voltage. There should be a noticable difference in RPM's with the EGR open.
Clean out the EGR valve and/or tubing to remove deposits.
Check the voltage at the DPFE, compare to specified values (refer to a repair manual for your specific model).
Replace the DPFE sensor (with a good quality / OEM one).
Replace the EGR valve.

Jul 08, 2011 | 1999 Mercury Sable

2 Answers

Mercury sable 2001 duratec engine DOHC I get check engine light and diagnostic code PO401". Any suggestions?


Barring any vacuum leaks, P0401 is indicative of a bad EGR valve. Hope this answers your question. Best of luck.
Greg

May 30, 2009 | 2001 Mercury Sable

1 Answer

97 tracer P0401 code won't go away


Late suggestion; it may be that the code needs to be reset via a code reader and that the problem will remain in memory until forcibly removed. That is fairly common.

Feb 22, 2009 | 1998 Mercury Tracer

4 Answers

2000 Honda Accord EGR Valve Error P0401


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

Nov 03, 2008 | 2000 Honda Accord

Not finding what you are looking for?
2000 Mercury Sable Logo

912 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercury Experts

yadayada
yadayada

Level 3 Expert

70387 Answers

Ron Lankford

Level 3 Expert

5386 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22041 Answers

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

Answer questions

Manuals & User Guides

Loading...