2008 308 HDI 2.0L - black smoke when accelerating
  • Register
  • Help
Results 1 to 22 of 22
Like Tree1Likes
  • 1 Post By David S

Thread: 2008 308 HDI 2.0L - black smoke when accelerating

  1. #1
    Tadpole
    Join Date
    Jun 2018
    Location
    Brisbane
    Posts
    11

    Default 2008 308 HDI 2.0L - black smoke when accelerating

    Hey all.

    As title says, my 2008 pug 308 2L hdi auto is puffing out bit of black smoke when accelerating. Not huge amounts but enough to notice it when following. 121k on the odo and a good service history. Read this can be caused by a blown turbo but power seems perfectly fine.

    Short of getting it looked at, where should I start in the diagnostic process? Any other common causes?

    Advertisement


    Cheers

  2. #2
    1000+ Posts
    Join Date
    Jun 2013
    Location
    Sydney
    Posts
    8,067

    Default

    All diesels run rich when accelerating. The job of the filter system is to catch the unburnt fuel soot. When the filter internal pressure rises sufficiently the computer will alter combustion to burn it off. The catalyst charge is to aid that. It could be one of several things, so I think an error code check is called for.

  3. #3
    1000+ Posts Kim Luck's Avatar
    Join Date
    Nov 2010
    Location
    Melbourne, Aus.
    Posts
    17,186

    Default

    First place to look at is the air intake system and filter. A blocked filter or tract in a diesel will produce volumes of black smoke. Black smoke could also be caused by a partially blocked particulate filter. A 100 km total run up the highway and back at 100 km/h should quickly unblock the dpf.
    Don't it always seem to go that you don't know what you've got 'til it's gone............

  4. #4
    1000+ Posts
    Join Date
    Jun 2013
    Location
    Sydney
    Posts
    8,067

    Default

    A regen doesn't even need high speeds. An uninterrupted 20 minute run (motorway) will suffice. However a simple FAP blockage from overdue regeneration in a Peugeot produces an error message on the dashboard and throws an error code.

  5. #5
    Tadpole
    Join Date
    Jun 2018
    Location
    Brisbane
    Posts
    11

    Default

    Thanks all.. I'll start with checking out the air intake / filter I guess. No errors on the dash and it does frequently get driven up the highway for decent streches.

    What tool do I need to interrogate engine errors?

  6. #6
    1000+ Posts
    Join Date
    Jun 2013
    Location
    Sydney
    Posts
    8,067

    Default

    A simple generic OBD code reader will get error codes. To get detailed sensor info you will need Diagbox on a Win laptop.

  7. #7
    1000+ Posts Rod Hagen's Avatar
    Join Date
    Nov 2001
    Location
    Melbourne
    Posts
    1,630

    Default

    Took me a few months of "semi country" driving to get rid of the occasional rear end puff of black in my my HDi 407SV estate. That said, I haven't seen anything similar now for several years. Try a good "country run" and if it doesn't clear , then check your codes.
    Rod's Home Page

    Rod's car page

    Peugeot 407 SV HDi estate 2008, Peugeot 407 SV Hdi Sedan 2006, Peugeot 406 ST (deadish), Peugeot 307 XSE, - Previously 403s, 404, 504, 505 sLI Wagons, 306 XSi, Renault 12, Citroen DSpecial

  8. #8
    Tadpole
    Join Date
    Jun 2018
    Location
    Brisbane
    Posts
    11

    Default

    Thanks all - good food for thought.

    What is the difference between using a generic OBD code reader and a PP2000 Lexia 3?

  9. #9
    1000+ Posts
    Join Date
    Jun 2013
    Location
    Sydney
    Posts
    8,067

    Default

    See my post above. PP/Lexia are replaced by Diagbox.

    Simple OBD error codes may often be sufficient to diagnose a problem, but they cannot recover the sensor data held in the computers.

  10. #10
    Tadpole
    Join Date
    Jun 2018
    Location
    Brisbane
    Posts
    11

    Default

    Hi All

    Just an update (I know its been a while). Issue is still occurring, no better, no worse.


    1. I did a good 400km highway run a few weeks ago
    2. Have checked air intake up-to air filter ingress point, and all is clear. Air filter itself looks OK, but have a new one on order just to be sure - ETA 1 week.
    3. Purchased an interface cable/Diagbox thing. After much mucking around, got it working. Things of note:
      1. P1351 - Pre-Heating Relay Circuit
      2. F5FF - Unexpected reinitialisation fault coming from the BSI
      3. Info - DFP has 18g of soot and did a regen 350km ago
      4. Info - Elosys tank is 51% full (I know this is calculated only, should be visually inspected. Just not sure where to look exactly.


    Not sure if P1351 would be related to this issue, I'd say not, research indicates as long as 3/4 glow-plugs are functional the DPG regen still occurs. And the log also indicates it is occurring.

    Any thoughts?

    Appreciate the help

    Cheers

    Stew

  11. #11
    Fellow Frogger
    Join Date
    Jan 2004
    Location
    Sydney
    Posts
    9,163

    Default

    Sometimes you can get excess black smoke if there is a split turbo air hose, so check them carefully. Perhaps, test the vacuum hoses are holding a vacuum in case you have low boost due to the common split y-piece or a leaky diaphragm in the air mixer/doser valve at the front? The EGR valves don't last forever either.

  12. #12
    Tadpole
    Join Date
    Jun 2018
    Location
    Brisbane
    Posts
    11

    Default

    Quote Originally Posted by David S View Post
    Sometimes you can get excess black smoke if there is a split turbo air hose, so check them carefully. Perhaps, test the vacuum hoses are holding a vacuum in case you have low boost due to the common split y-piece or a leaky diaphragm in the air mixer/doser valve at the front? The EGR valves don't last forever either.

    Thanks David

    I remember reading about the split vacuum tubes being a problem - any pointers on locating this (and the turbo hoses in question?)?

    Cheers

  13. #13
    Fellow Frogger
    Join Date
    Jan 2004
    Location
    Sydney
    Posts
    9,163

    Default

    Even if it is not your problem, it is worthwhile being aware of that y-piece, so read through this and the linked thread re Pug:
    C5 power down
    (Listed in the Citroen-related thread that may help for later Pugs: The Thread of excellent threads! )

    The air handling hoses are essentially the large ones that aren't for coolant! Look particularly at oily areas for splits or weakness.
    leithant likes this.

  14. #14
    Tadpole
    Join Date
    Jun 2018
    Location
    Brisbane
    Posts
    11

    Default

    Thanks David

    Confirmed the y-piece is intact.

    All air hoses that I can see look OK (that is, air intake -> filter, filter -> rear of engine -> no visibility as it loops into the turbo down the back and into the intercooler (so unsure about that) -> intercooler to engine OK).

    Hopefully the new air filter arrives soon

  15. #15
    Fellow Frogger!
    Join Date
    Feb 2011
    Location
    New Zealand !
    Posts
    173

    Default

    Hi Hophead, how did you get on?

    I have the same vehicle except approx 152K, my wife says she occasionally sees black smoke coming up our hill but I haven't (yet)

    I'm in for a timing belt, oil/filter change and scan in a few weeks. I should check the air filter too...

    P1351 almost certainly a glow plug

  16. #16
    Tadpole
    Join Date
    Jun 2018
    Location
    Brisbane
    Posts
    11

    Default

    Hi Xlink

    New air filter did not resolve the issue. I popped the P1531 code into ServiceBox the other day and sure enough there was an article describing one of three symptoms being excessive exhaust smoke. I coughed up the 7 euro for an hour of full access and did some further research. They say check all 4 glow plugs and replace where faulty to address P1531. I then proceeded to read about the glow plugs and 3 different states they are used in. Just doesn't make sense that, when the engine is all warmed up, and technically the glow plugs are not being used, it would contribute to this problem. Really at a bit of a loss.

  17. #17
    Fellow Frogger! dmccurtayne's Avatar
    Join Date
    Jul 2013
    Location
    Newcastle/ central coast
    Posts
    912

    Default

    You most likely have an intake leak get a mechanic with a smoke machine and check it over common to split on the runners where they go into the head round seals


    Garage C5 X7 3008 XTE
    Gone but not forgotten 206 GTI 180 306 XR SED 405 MI16 x2 xzara VTS 406 SV 206 XT Berlingo 2011 (best car ever) 306 HDI 307 XSE HDI touring
    Fix it right the first time

  18. #18
    1000+ Posts
    Join Date
    Jul 2001
    Location
    Perth, Western Australia
    Posts
    5,933

    Default

    Or you can CAREFULLY play the gas from an UNLIT propane torch nozzle (using a light flow) over suspected areas with the car idling and it should speed up if there's a leak.


    2003 PEUGEOT 206 GTi

  19. #19
    Fellow Frogger! luthier's Avatar
    Join Date
    Oct 2004
    Location
    Northern NSW
    Posts
    984

    Default

    Quote Originally Posted by dmccurtayne View Post
    You most likely have an intake leak get a mechanic with a smoke machine and check it over common to split on the runners where they go into the head round seals


    Garage C5 X7 3008 XTE
    Gone but not forgotten 206 GTI 180 306 XR SED 405 MI16 x2 xzara VTS 406 SV 206 XT Berlingo 2011 (best car ever) 306 HDI 307 XSE HDI touring
    Fix it right the first time
    I think this could be your answer.

  20. #20
    Fellow Frogger!
    Join Date
    Feb 2011
    Location
    New Zealand !
    Posts
    173

    Default

    Quote Originally Posted by hophead View Post
    Hi Xlink

    New air filter did not resolve the issue. I popped the P1531 code into ServiceBox the other day and sure enough there was an article describing one of three symptoms being excessive exhaust smoke. I coughed up the 7 euro for an hour of full access and did some further research. They say check all 4 glow plugs and replace where faulty to address P1531. I then proceeded to read about the glow plugs and 3 different states they are used in. Just doesn't make sense that, when the engine is all warmed up, and technically the glow plugs are not being used, it would contribute to this problem. Really at a bit of a loss.
    Hi again

    I just had a cambelt and water pump replaced so I also asked then to check for black smoke nmy wife reported

    They said there is black smoke under load. They feel this is related to code P0088 (Fuel pressure to high at rail). They also said there is a known Peugeot workshop bulletin on the solonoid that is part of fuel pump pressure regulator being not woring correctly and suggested this is where they would start

    Note we also have code P1351. It seems 3 of 4 glow plugs are dead but they said don't worry about it despite them apparently playing a part in the DPF cycle


    How have you got on?

  21. #21
    Fellow Frogger! dmccurtayne's Avatar
    Join Date
    Jul 2013
    Location
    Newcastle/ central coast
    Posts
    912

    Default

    So you have p0088 ?


    Garage C5 X7 3008 XTE
    Gone but not forgotten 206 GTI 180 306 XR SED 405 MI16 x2 xzara VTS 406 SV 206 XT Berlingo 2011 (best car ever) 306 HDI 307 XSE HDI touring
    Fix it right the first time

  22. #22
    Fellow Frogger!
    Join Date
    Feb 2011
    Location
    New Zealand !
    Posts
    173

    Default

    Quote Originally Posted by dmccurtayne View Post
    So you have p0088 ?


    Garage C5 X7 3008 XTE
    Gone but not forgotten 206 GTI 180 306 XR SED 405 MI16 x2 xzara VTS 406 SV 206 XT Berlingo 2011 (best car ever) 306 HDI 307 XSE HDI touring
    Fix it right the first time
    yes that is what they found

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

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