Discovery 3 Disco 3 2.7 Tdv6 fault codes EGR





Results 1 to 17 of 17
  1. #1
    Join Date
    Dec 2011
    Location
    Cape Town, Grassy Park
    Age
    46
    Posts
    33
    Thanked: 9

    Default Disco 3 2.7 Tdv6 fault codes EGR

    Hello fellow LR owners

    I have the following fault codes:
    1. P140A(00) - EGR sensor C
    2. P140E(00) - EGR open

    What does this mean? How can I fix this. I assume the EGR is faulty, perhaps gunked up with carbon. Or perhaps the EGR wiring is loose? Or stuck in a wrong position?

    I do plan on blanking the EGR (and then I procrastinate), however I want to understand what the fault codes mean and if the action of blanking is appropriate.

    History of LR:
    I have recently purchased my 2nd LR, a Disco 3, 2007 diesel. The vehicle has had a full service history and was well looked after by previous 2 owners. It currently has 190000km on the clock. Well, visually well looked after. There are no mods done.



    I had some issues:
    1. Lack of power driving normally and delayed power response on straight pull away when flooring the accelerator.
    2. Super delayed response uphill.
    3. Black smoke when flooring the accelerator from stand still, stops after a short while and no smoke while cruising.

    The vehicle is standard except for a recent catalytic converter removal after reading alot about the 5 most discussed topics, must doís....cat removal, the next items I have not done, EGR blanking and remap, oil pump replacement, oh and 2SO additive to fuel tank. I hope there arenít any more...

    The results was immediately felt after removing the cat.
    All power was back, instant, no more lag and no more black smoke. Smooth engine response throughout the rev range.

    Downside, I do have some white smoke on idle, canít say if it goes away during driving.

    Also, regarding the oil pump, it takes 5 s for the oil light to switch off from cold start up. And itís been 9 deg celcius these days. Hopefully that means it has the improved oil pump.

    The first LR was a series 2, single cab long wheel base, Ouboet the simple things in life.

    Any assistance would be appreciated.
    Last edited by SchyffS; 2019/08/15 at 06:19 PM.

  2. #2
    Join Date
    Jun 2015
    Location
    Cape town
    Age
    37
    Posts
    97
    Thanked: 15

    Default Re: Disco 3 2.7 Tdv6 fault codes EGR

    "Black smoke when flooring the accelerator from stand still, stops after a short while and no smoke while cruising."


    read somewhere here on forum about vehicles not getting up to temperature as driven to mall and back and not open road/hard and its something that gets blocked or something like that.

    so getting it hot and hard driving clears it. im not sure exactly what it was and what thread it is in
    Last edited by Masterzanshin; 2019/08/11 at 08:48 PM.

  3. The Following User Says Thank You to Masterzanshin For This Useful Post:


  4. #3
    Join Date
    Dec 2011
    Location
    Cape Town, Grassy Park
    Age
    46
    Posts
    33
    Thanked: 9

    Default Re: Disco 3 2.7 Tdv6 fault codes EGR

    Hi Masterzanshin, I drive it daily to work, about 21km each way on open road with no traffic. Cruising speed 120km/h. I canít say what the previous ownerís routine was like.

    Perhaps it was just years of gunk packed in the Cat and EGR?

  5. #4
    Join Date
    May 2009
    Location
    Hillcrest, Malaysia
    Age
    63
    Posts
    18,561
    Thanked: 5979

    Default Re: Disco 3 2.7 Tdv6 fault codes EGR

    You need to start using 2SO in the fuel.

    After two tanks of fuel you will have the cleanest EGR in the business.
    Last edited by Fluffy; 2019/08/11 at 09:33 PM.
    Cheers

    ZS5KAD
    3 V8's
    NA TwinTurbo SuperCharger
    A V6 and an inline 4

    The frogs are starting to notice that the water is getting warm but it is already too hot to do anything about it.....

  6. #5
    Join Date
    Jul 2008
    Location
    MTUNZINI
    Age
    55
    Posts
    2,006
    Thanked: 464

    Default Re: Disco 3 2.7 Tdv6 fault codes EGR

    Quote Originally Posted by SchyffS View Post
    Hello fellow LR owners

    I have the following fault codes:
    1. P140A(00) - EGR sensor C
    2. P140E(00) - EGR open

    What does this mean? How can I fix this. I assume the EGR is faulty, perhaps gunked up with carbon. Or perhaps the EGR wiring is loose? Or stuck in a wrong position?

    I do plan on blanking the EGR, however I want to understand what the fault codes mean and if the action of blanking is appropriate.

    History of LR:
    I have recently purchased my 2nd LR, a Disco 3, 2007 diesel. The vehicle has had a full service history and was well looked after by previous 2 owners. It currently has 190000km on the clock. Well, visually well looked after. There are no mods done.

    I had some issues:
    1. Lack of power driving normally and delayed power response on straight pull away when flooring the accelerator.
    2. Super delayed response uphill.
    3. Black smoke when flooring the accelerator from stand still, stops after a short while and no smoke while cruising.

    The vehicle is standard except for a recent catalytic converter removal after reading much about the 4 most discussed topic about must doís....cat removal, EGR blanking and remap, oh and 2SO additive to fuel tank.
    It looks like your EGR is deleted , that is why you have this faults, easy to check,look for the plates if its in place , or send us pics.
    All TDV6's that have their EGR deleted have this faults on diagnostics , just ignore.
    If cat is removed surely that EGR is deleted.
    Your next problem about the smoke and lack of power is the intecooler pipe is FUBAR
    Koos Best
    Land Rover Discovery3 TDV6 S.
    VW T5 D/cab 4 Motion with slide on camper

  7. #6
    Join Date
    Dec 2011
    Location
    Cape Town, Grassy Park
    Age
    46
    Posts
    33
    Thanked: 9

    Default Disco 3 2.7 Tdv6 fault codes EGR

    EGR not removed? Based on the pipes with the cloth wrap, I think itís still there.

    I removed the cat a week ago as a first step to solve the lack of power issue. Power is now back, very smooth acceleration throughout the rev range.




    I have a new set of silicone hoses, not had a chance to install. Also wanted diagnose one item at a time.

    Also I donít have anymore black smoke on hard acceleration on pull away.
    Last edited by SchyffS; 2019/08/12 at 12:20 PM.

  8. #7
    Join Date
    Dec 2011
    Location
    Cape Town, Grassy Park
    Age
    46
    Posts
    33
    Thanked: 9

    Default Disco 3 2.7 Tdv6 fault codes EGR

    Quote Originally Posted by Fluffy View Post
    You need to start using 2SO in the fuel.

    After two tanks of fuel you will have the cleanest EGR in the business.
    I am sitting on the fence with removing the EGR, so from what I understand is that using the 2SO will keep things (injectors, fuel pump and egr) clean and lubricated therefore no need to remove the EGR? I donít want to start that whole discussion....read enough about it
    Last edited by SchyffS; 2019/08/14 at 07:55 AM.

  9. #8
    Join Date
    Dec 2011
    Location
    Cape Town, Grassy Park
    Age
    46
    Posts
    33
    Thanked: 9

    Default Disco 3 2.7 Tdv6 fault codes EGR

    Does the disco 3 Tdv6 have a denso common rail injection system?

    I have read an article written by a diesel workshop specialist that he recommends 2SO for pre 2010 models (of any vehicle) and makes reference to denso common rail injection systems.
    The recommendation came as a direct result of the many failed injectors and fuel pumps of clients vehicles , according to his conclusions due to a lack of lubrication.

    Oh, and Iíve started using 2SO (Jaso-FC) in the 1:200 ratio, on my 3rd tank now for the purpose of Ďcleaningí the EGR. My observations:
    1. Engine is noticeably quieter.
    2. Engine response is smoother.
    3. That white smoke during cold startup idle has reduced. I canít say if itís because the cat is removed or because the 2SO is doing its work on the injectors and EGR.
    4. Fuel consumption is unchanged, 12L/100km mixed driving cycle. Measured by calculations, not dashboard readings. The dashboard readings show average 9.5 - 10 L/100km. This was usually in the range of 11 - 12 L/100km before 2SO and cat removal.

    I will measure the injector imbalance when the engine is warm. Would have been more useful if I measured before starting 2SO. But perhaps there will be changes over the next few tanks.

    I decided that for now Iím going to measure the 2SO performance by checking the OBDII fault codes.
    Iíve also kept clearing the fault codes, but it comes back. Will continue to clear and check...i assume that if 2SO does clean the EGR (according to Fluffy) the fault code should disappear as well?
    Last edited by SchyffS; 2019/08/15 at 07:00 PM.

  10. #9
    Join Date
    Dec 2011
    Location
    Cape Town, Grassy Park
    Age
    46
    Posts
    33
    Thanked: 9

    Default Disco 3 2.7 Tdv6 fault codes EGR

    EGR sensors measured during idle on warm engine:
    Commanded EGR throttle - 0%
    Commanded EGR valve 0 - 0%
    Commanded EGR valve 1 - 0%
    EGR valve 0 position - 5%
    EGR valve 1 position - 15.41%
    EGR regulator position - 14.96%

    Do any of these EGR sensor data indicate EGR valve incorrect/correct operation during idle? i.e what does it mean?
    --------------------------------------------------------------------------------------------------------------------------------
    I measured the injector disbalance when the engine was warm, engine rpm was approximately 750:
    Cylinder 1 - 990.52
    Cylinder 2 - 1101.76
    Cylinder 3 - 1004.75
    Cylinder 4 - 954.42
    Cylinder 5 - 996.32
    Cylinder 6 - 962.72

    They even out while driving at 1000.02, seems the are in spec. Can anyone confirm this?

    Other sensors:
    Pressure valve - 13.59%
    Volume control valve - 23.81%
    Last edited by SchyffS; 2019/08/16 at 11:11 PM.

  11. #10
    Join Date
    Nov 2015
    Location
    Durban
    Age
    63
    Posts
    822
    Thanked: 272

    Default Re: Disco 3 2.7 Tdv6 fault codes EGR

    [QUOTE=SchyffS;4208234]I measured the injector disbalance:
    Cylinder 1 - 990.52
    Cylinder 2 - 1101.76
    Cylinder 3 - 1004.75
    Cylinder 4 - 954.42
    Cylinder 5 - 996.32
    Cylinder 6 - 962.72

    I''m sure that the injectors are checked when idling and yes the minute you take the revs over 1000rpm they all even out to 1,000 .

  12. The Following User Says Thank You to smarty For This Useful Post:


  13. #11
    Join Date
    Dec 2011
    Location
    Cape Town, Grassy Park
    Age
    46
    Posts
    33
    Thanked: 9

    Default Disco 3 2.7 Tdv6 fault codes EGR

    Iím trying to understand how the EGR works, so google, and reading in the absence of any chatter from other forum members. I found this below. There is a lot of benefit in lowering cylinder temperature thereby increasing performance.
    What I would like to understand is how the sensor readings can tell me if the EGR system is working correctly or not and also what readings tell me it is working correctly.
    Here is a snip of the article:


    I have experienced engine hesitation at 80km/h and then again at 120km/h and after reading the article above I think it explains and confirms that my EGR system is not working correctly. Perhaps I should not bet on the 2SO cleaning the EGR....perhaps I should just pull it out and clean it. Can the EGR be cleaned? Or is replacement the only option. Besides the blanking option.

    Here is a link to the article:
    https://www.autoblog.com/2016/01/07/...edback-sensor/
    Last edited by SchyffS; 2019/08/16 at 11:13 PM.

  14. #12
    Join Date
    Mar 2018
    Location
    Goba
    Age
    60
    Posts
    308
    Thanked: 141

    Default Re: Disco 3 2.7 Tdv6 fault codes EGR

    Quote Originally Posted by SchyffS View Post
    EGR sensors measured during idle on warm engine:
    Commanded EGR throttle - 0%
    Commanded EGR valve 0 - 0%
    Commanded EGR valve 1 - 0%
    EGR valve 0 position - 5%
    EGR valve 1 position - 15.41%
    EGR regulator position - 14.96%

    Do any of these EGR sensor data indicate EGR valve incorrect/correct operation during idle? i.e what does it mean?

    This is a difficult decision to make:
    I suggest...Blank off EGR system and remove butterfly in intake
    Continue using 2So...I use 500ml every 2nd tank...Just for turbo and injectors

    --------------------------------------------------------------------------------------------------------------------------------
    I measured the injector disbalance when the engine was warm, engine rpm was approximately 750:
    Cylinder 1 - 990.52
    Cylinder 2 - 1101.76
    Cylinder 3 - 1004.75
    Cylinder 4 - 954.42
    Cylinder 5 - 996.32
    Cylinder 6 - 962.72

    This is very healthy readings on injectors....Between 700 and 1300 is acceptable
    Yours between 950 and 1100 is super


    They even out while driving at 1000.02, seems the are in spec. Can anyone confirm this?

    Other sensors:
    Pressure valve - 13.59%
    Volume control valve - 23.81%
    1997 Discovery 1 300 TD i ...Old Faithful
    2006 Discovery 3 2.7 TDV 6...not sure yet ?

  15. The Following User Says Thank You to LRTDV6 For This Useful Post:


  16. #13
    Join Date
    Dec 2011
    Location
    Cape Town, Grassy Park
    Age
    46
    Posts
    33
    Thanked: 9

    Default Disco 3 2.7 Tdv6 fault codes EGR

    Thanks for the response LRTDV6.

    I blanked of the EGR today, wow, the carbon build up inside the air intakes was unbelievable! Looked like 5mm cake layer.
    EGRís blank off Itís a must do...

    I followed the Bell Auto Services guide.

    Everything went well, except for when I broke the plastic end of the butterfly shaft. I removed the butterfly valve, reinserted the shaft. So I could not reconnect the actuator to the butterfly shaft. I left the short arm on the actuator.
    Decided to close up and start the engine.

    Not good, a loud winding noise, thatís subsided eventually, then comes back every now and then. Iím thinking itís that short arm spinning around and rubbing against the insides of the housing.
    Also lots of black smoke now, I assume my intercooler pipes must be replaced as well.

    But, now I have less power...is it because of the intercooler pipes? I had to disconnect it to remove the air box.
    Or did the y box not seal properly, or did the air box not seal properly with the ybox. Will have to open up again and recheck everything.

    What could the loud winding noise be?
    Will the actuator that is not connected to the butterfly shaft be a problem?
    Last edited by SchyffS; 2019/08/17 at 09:43 PM.

  17. #14
    Join Date
    Mar 2018
    Location
    Goba
    Age
    60
    Posts
    308
    Thanked: 141

    Default Re: Disco 3 2.7 Tdv6 fault codes EGR

    Quote Originally Posted by SchyffS View Post
    Thanks for the response LRTDV6.

    I blanked of the EGR today, wow, the carbon build up inside the air intakes was unbelievable! Looked like 5mm cake layer.
    EGRís blank off Itís a must do...
    Yes, Well done and all that gunk hampers the performance
    Did you use a blanking Kit or your own 50c blanks ??

    I followed the Bell Auto Services guide.

    Everything went well, except for when I broke the plastic end of the butterfly shaft. I removed the butterfly valve, reinserted the shaft. So I could not reconnect the actuator to the butterfly shaft. I left the short arm on the actuator.
    Decided to close up and start the engine.
    Eish, the Actuator needs to read normal and if it is not connected it might give the wrong massage through
    I removed the whole shaft but the connector arm (plastic arm) is connected to the original part that tuns (activate) the butterfly


    Not good, a loud winding noise, thatís subsided eventually, then comes back every now and then. Iím thinking itís that short arm spinning around and rubbing against the insides of the housing. Very possible
    Also lots of black smoke now, I assume my intercooler pipes must be replaced as well.

    Think you are "sucking" air somewhere, make sure all O rings are in place and are sealing properly
    If you removed the MAF housing from the Air box...do not put the O ring on the housing when you reinstall rather seat it in the air box and press the housing in


    But, now I have less power...is it because of the intercooler pipes? I had to disconnect it to remove the air box.
    Or did the y box not seal properly, or did the air box not seal properly with the ybox. Will have to open up again and recheck everything.
    Could be...... Check for splits and bad clamps

    What could the loud winding noise be? (Air leak ) (Sucking)
    Will the actuator that is not connected to the butterfly shaft be a problem?
    Sadly Yes.. it can now try to close/open because the MAF sensor signal does not lock the actuator on the correct place
    Have a good look at your MAF (Mass Air Flow) sensor and a good action is to clean it with Electro clean (Do not touch the wire element)

    Another test to check if MAF is OK.... disconnect it... the car will start but pull like sh#t... If the pull is the same or almost as when it is connected it is fubar and needs to be replaced
    You can clean the MAP (Mass air pressure) as well..
    .Do not poke something into it..Just spray (Drench) and allow to dry
    (It is on the split of the Y piece and just loosen the torx and pull out)
    1997 Discovery 1 300 TD i ...Old Faithful
    2006 Discovery 3 2.7 TDV 6...not sure yet ?

  18. The Following User Says Thank You to LRTDV6 For This Useful Post:


  19. #15
    Join Date
    Dec 2011
    Location
    Cape Town, Grassy Park
    Age
    46
    Posts
    33
    Thanked: 9

    Default Disco 3 2.7 Tdv6 fault codes EGR

    Wow, I checked everything this morning again. 6 am with a cup of coffee.

    So I found that the air box that connects to the butterfly body was not sealed. Basically it was moving towards the radiator fan and the fan blades was rubbing against its body.

    Newbie mechanic errors.

    I installed everything, step by step. And at the same time felt confident enough to replace one of the intercooler pipes. Was the easy one I think.
    The old hose did have a tear on one end, 10mm long...couldnít see it as the clamp was covering it.

    Then the wife called to have breakfast, couldnít let it go cold...
    So I ended having it like this
    Click image for larger version. 

Name:	IMG_0917.JPG 
Views:	29 
Size:	174.3 KB 
ID:	537657

    Back to the job card...
    After praying to the old gods and the new gods, I started her up. She was instant and quiet.
    White smoke was gone.
    Black smoke was gone.

    Went for a drive, roads were clear and empty. Fantastic, power was back , instant, smooth and I could hear the turbo spool up. Nice!

    I did clean that MAF sensor as well. WAS PRETTY GUNKED UP.
    A pic of the new silicone hose and the air box that wasnít installed correctly.
    Click image for larger version. 

Name:	IMG_0916.JPG 
Views:	38 
Size:	163.1 KB 
ID:	537653

    I used a blanking kit, bought from China was well made, had all the orings including the indents and fitted very nicely.
    I should taken pics, but when your hands are full of grease....

    I will scan for error codes later today after taking a nice Sunday drive.

    For those who are not convinced about decat, egr blanking etc....I have now seen the muck inside the engine for myself and itís pretty bad.
    Thanks LRTDV6 for your input, it helped tremendously.
    Last edited by SchyffS; 2019/08/19 at 01:51 PM.

  20. The Following 2 Users Say Thank You to SchyffS For This Useful Post:


  21. #16
    Join Date
    Dec 2011
    Location
    Cape Town, Grassy Park
    Age
    46
    Posts
    33
    Thanked: 9

    Default Disco 3 2.7 Tdv6 fault codes EGR

    Ok, nice drive to Hout Bay, this is how a TDV6 should drive. All this time the disco was suffering the cat and EGR exhaust fumes.

    Fuel consumption was unbelievably low... well on the display I have never had such low readings.
    Click image for larger version. 

Name:	IMG_0919.JPG 
Views:	36 
Size:	187.4 KB 
ID:	537665

    Even on the uphill through Camps Bay, Llandudno etc, never showed anything more than 9,2L/100km, always hovering between 8,2 etc
    Last edited by SchyffS; 2019/08/19 at 01:46 PM.

  22. #17
    Join Date
    Dec 2011
    Location
    Cape Town, Grassy Park
    Age
    46
    Posts
    33
    Thanked: 9

    Default Re: Disco 3 2.7 Tdv6 fault codes EGR

    I need some advise:

    How difficult is the replacement of the other 2 intercooler/turbo hoses. I have a bendy one and short straight one left. Difficulty rating 1-10, 10 being extremely difficult.
    Or Should I just let an Indie do it at the next service?

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •