Follow us on...
Follow us on Facebook Follow us on instagram
Register

User Tag List

Thanks Thanks:  3
Likes Likes:  43
Loves Loves:  4
Page 1 of 9 1 2 3 ... LastLast
Results 1 to 10 of 82
  1. #1
    Learner Driver smitrocks's Avatar
    Join Date
    Oct 2018
    Location
    Kilsyth
    Car
    2009 Insignia Elite Nav 2.0 CDTi
    Posts
    43
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Limp mode, DPF and boost valve codes intermittent - 2.0 CDTi

    Forum Key Rings
    Hi guys, hoping for some help narrowing down a problem with my 2009 Insignia 2.0 CDTi.

    I had an injector seal go a few weeks back and took it to a mate who is a mechanic. He took out the injectors, cleaned the injector seats and renewed the seals/washers underneath. The car was running perfect before this, even with the leaky injector, just smoky under the bonnet.

    When I got the car back it was seriously underpowered, barely getting to between 1500rpm to 2000rpm. The service vehicle soon warning was also on.

    He checked it with his diagnostics kit and it came up with a DPF regen code and a boost valve code.

    He tried multiple forced DPF regenerations but each of them failed. He suggested maybe a different diagnostic kit would work.

    The last time I had a DPF code it was actually the common fault of a split boost hose (about 70000 miles ago) which I changed myself and it solved the problem and put all the lights out. I don’t remember it losing that much power that time but I was pretty sure it was going to be that hose again.

    I’ve felt around the hose without removing it and can’t feel or see any splits in it this time.

    I checked the fault codes again with a basic code reader and it now only showed “P2453 Diesel Particulate Filter Differential Pressure Sensor Circuit Range / Performance” and the Engine Management light is now on along with a message saying DPF full, refer to manual.

    I’m not convinced the DPF is actually the root cause and think it may be a side effect of being limited to such low revs and not able to clear itself. I think this might also be why the forced regens failed but I’m probably wrong about that!

    Having read a few similar posts I’m now suspicious of the Boost Control Valve which I don’t remember ever having changed and the car is at 120,000 miles.
    I got in the car today and started it up and noticed a humming/buzzing noise that lasted maybe ten seconds at most. I have read that this is one of the symptoms of this valve going faulty. I haven’t noticed that before or heard it since.

    It appears to be a common fault and an easy thing to change but I’m just wondering if anyone has had a similar experience with it and if I’m on the right track?

    Any help or advice is much appreciated.

    Thanks in advance!

  2. #2
    Enforcer lizzard-t's Avatar
    Join Date
    Dec 2018
    Location
    Littlehampton West Sussex
    Car
    saab 9-3 turboX.9-3 1.9 TID,vectra B GSI,nissan qashqai.
    Posts
    1,717
    Post Thanks / Like
    Mentioned
    18 Post(s)
    Tagged
    0 Thread(s)
    Hello first and foremost you have got to get the car out of limp mode / limited performance mode .
    The code you have points towards differential pressure sensor wiring on the DPF pressure sensor circuit range / performance.
    You will have to locate the differential pressure sensor which is normally located on the fire wall with 2 tubes coming off down to the DPF .you will have to locate the wiring , if it's 3 wire then you have power , ground and trigger , power 12v plus or minus depending on battery voltage,ground ( negative) trigger 5v reference voltage at ignition on .
    If any fall out of parameters then check wiring .
    If all wiring is ok and not out of perameters then the pressure sensor itself.
    As you can understand the car will only regen when certain conditions are met .
    1) engine temperature above 65degrees Celsius +/-
    2) some work on engine speed above 900 rpm ( pre 2012)
    3) differential pressure between inlet and exit of DPF inlet runs at 75 bar , should be slightly lower on exit .
    If inlet runs higher and exit remains about the same as before then with all the above conditions then it will perform a regen .
    You really require something like opcom to read live data .
    The way it sounds is that the DPF is full the differential pressure circuit is faulty so the car will not perform a regen.
    First check level and smell of oil on dip stick ( if higher than max ) then stop using the car replace oil and filter .as oil quality has suffered .and it's degraded ,
    Once done then check MAF and map sensor and clean , check for air leaks on induction system .
    You will not be able to get it out of limp mode till differential pressure circuit problems are sorted .
    Once that's done you may be able to carry out a forced regen by finding an open road and keeping revs above 2500 for as long as it takes .
    But with current situation that's not possible.
    On opcom you should be able to carry out a forced regen.
    Once the above is sorted .

    J.K.M.P.C.U

  3. #3
    Advanced Driver
    Dave1419's Avatar
    Join Date
    Sep 2018
    Location
    Newcastle upon Tyne
    Car
    Vauxhall Insignia Sri Nav Cdti Ecoflex 163--its certainly not a farting tortoise.
    Posts
    1,179
    Post Thanks / Like
    Mentioned
    19 Post(s)
    Tagged
    0 Thread(s)
    The boost sensor is easy and cheap enough to change, don't know why your mechanic decided to repair all 4 of the injectors when only one had a problem, the car will not do a regen if all of the parameters are not met and any existing fault codes are not looked at and the necessary repairs are done, could be that you have sensor problems in the exhaust system and this is why the car is in limp mode, you do need to have a decent diagnostic device for the insignia as most won't work, where are you in the UK as someone may be able to help, so starting with a proper diagnostic tool first would be the way to go---Dave

  4. #4
    Learner Driver smitrocks's Avatar
    Join Date
    Oct 2018
    Location
    Kilsyth
    Car
    2009 Insignia Elite Nav 2.0 CDTi
    Posts
    43
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Hi both, thanks for the responses. Im afraid the first one is beyond my capabilities so it looks like Ill need to get it in a garage after all.

    Was really just wondering if the boost control valve could somehow trigger these symptoms of low power and if it could cause a DPF code to come up alongside the boost control valve code.

    From your response Lizzard-t, it seems thats not the case and it needs a good bit more investigation and repair.

    Dave, Im just outside of Glasgow but Ill probably just try and find a Local garage that is open to have a look at it.

    Thanks again for getting back to me.

  5. #5
    The Stig

    RBH's Avatar
    Join Date
    Feb 2018
    Location
    UK
    Car
    .....
    Posts
    8,040
    Post Thanks / Like
    Mentioned
    95 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by smitrocks View Post
    Hi both, thanks for the responses. I’m afraid the first one is beyond my capabilities so it looks like I’ll need to get it in a garage after all.

    Was really just wondering if the boost control valve could somehow trigger these symptoms of low power and if it could cause a DPF code to come up alongside the boost control valve code.

    From your response Lizzard-t, it seems that’s not the case and it needs a good bit more investigation and repair.

    Dave, I’m just outside of Glasgow but I’ll probably just try and find a Local garage that is open to have a look at it.

    Thanks again for getting back to me.
    Where abouts.....just outside Glasgow??

  6. #6
    Learner Driver smitrocks's Avatar
    Join Date
    Oct 2018
    Location
    Kilsyth
    Car
    2009 Insignia Elite Nav 2.0 CDTi
    Posts
    43
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    RBH, I live in Kilsyth mate.

  7. Likes RBH liked
  8. #7
    The Stig

    RBH's Avatar
    Join Date
    Feb 2018
    Location
    UK
    Car
    .....
    Posts
    8,040
    Post Thanks / Like
    Mentioned
    95 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by smitrocks View Post
    RBH, I live in Kilsyth mate.
    ahhhh right

    pity your not closer to Wishaw.
    My son has a garage there and he's time served with Vauxhall

  9. Thanks Dave1419 Thanked
    Likes Dave1419 liked
  10. #8
    Advanced Driver
    Dave1419's Avatar
    Join Date
    Sep 2018
    Location
    Newcastle upon Tyne
    Car
    Vauxhall Insignia Sri Nav Cdti Ecoflex 163--its certainly not a farting tortoise.
    Posts
    1,179
    Post Thanks / Like
    Mentioned
    19 Post(s)
    Tagged
    0 Thread(s)
    If you can I would be making the trip over to see Rab's son as I know that they will know the cars inside out------Dave

  11. #9
    Learner Driver smitrocks's Avatar
    Join Date
    Oct 2018
    Location
    Kilsyth
    Car
    2009 Insignia Elite Nav 2.0 CDTi
    Posts
    43
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks guys, thought I’d responded to this to say I’d take the car there if I could but the thing won’t even go up hills right now!

    Also to say the last time I was out in it I heard a pop followed by a loud hissing and gas escaping under the bonnet.

    Turns out there’s a split in a pipe, luckily the number on it is very clear 55566187 which, upon checking, is listed as an exhaust pressure difference sensor pipe.

    Question is, could this have been the issue all along? Could it have been a small split causing pressure loss then by driving it I’ve completely burst it open? There’s about an inch long split along it. Notably this pipe is run slightly incorrectly through its clips, missing one completely which suggests it may have been changed at some point before.

    Going to give it a go and change this pipe then see what happens. Has anyone done this before? If so, what were your car’s symptoms and are the clips one time use only, because they look that way.

    Thanks again for your responses. Name:  89529B1A-A8E4-4D46-B492-F2F601663D56.jpg
Views: 80
Size:  55.2 KB

  12. Likes Dave1419, Witty liked
  13. #10
    Speed Demon Witty's Avatar
    Join Date
    Apr 2016
    Location
    Halesowen West Mids.
    Car
    Insignia facelift elite hatchback, 2.0 cdti, in asteroid grey.
    Posts
    2,015
    Post Thanks / Like
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    It could have been the problem in the first place.
    Please come back and update when you have replaced the pipe for future reference.
    LED interior lights. Chrome mirror caps & door handle covers. LED reverse light bulbs. Pedal box. Atomic Alloys. Steel Structure spare wheel. Boot floor risers. Rear exit exhaust & rear valance. M Y 15 front grille.

  14. Thanks Dave1419 Thanked
    Likes Dave1419 liked
 

 
Page 1 of 9 1 2 3 ... LastLast

Similar Threads

  1. Limp mode, no codes, no split in boost pipe
    By xdeity in forum Engine, Drive Train & Transmission
    Replies: 7
    Last Post: 13-03-2019, 04:21 PM
  2. Code 82, limp mode, code 55 - ecu not registering codes
    By exclusiv. in forum Engine, Drive Train & Transmission
    Replies: 3
    Last Post: 30-10-2015, 12:43 PM
  3. Service Vehicle Soon, Limp mode, error codes!
    By Clive in forum Engine, Drive Train & Transmission
    Replies: 1
    Last Post: 28-09-2015, 03:56 PM
  4. Limp Mode - Regen needed or new/remove DPF?
    By Ghostrider in forum Engine, Drive Train & Transmission
    Replies: 4
    Last Post: 03-11-2014, 04:50 PM
  5. Replies: 2
    Last Post: 13-07-2014, 12:06 AM

Posting Permissions