Marius's Touareg R5 life thread. - Page 80




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  1. #1581
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    Quote Originally Posted by parafanaylya View Post
    10ppm very scarce. Haven't found any yet.
    Mainly In the big CBD's.
    2007 Touareg 3.0 V6 TDI (Facelift, Air, Rear Diff Lock, Rear Mounted Spare)
    2008 Audi A4 B8 2.0 TDI (Multitronic)
    2009 KTM 990 Adventure (Daily Commuter & Weekend Fun)
    2012 Imagine Trailvan 4-Sleeper

    * consumption needs to be seen in the context that the vehicle is towing an Imagine Trailvan 50% of the time.


  2. #1582
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    Quote Originally Posted by parafanaylya View Post
    10ppm very scarce. Haven't found any yet.
    Also nowhere to find in PE but at least their quality standards are better than the rest.
    Sent from my iPhone


  3. #1583
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    Marius, are you saying the injectors got stuffed up that quick. In less than a tank full.

  4. #1584
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    Quote Originally Posted by Kiboko View Post
    Marius, are you saying the injectors got stuffed up that quick. In less than a tank full.
    I dont know. Nothing can be taken for sure.

    All im thinking is that bad lubricity diesel and climbing sir lowry's pass (hard working engine) is a disaster for an extremely fine tolerance injector that relies on good diesel to provide lubrication.

    Occam's razor. What else could it be?

  5. #1585
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    Maybe an extra dosage of 2SO and clean diesel or maybe some injector cleaner to dissolve the wax? If it happened that quick then it must be the fuel that caused it. If the injectors ran clean when you put in the new fuel and then started misfiring as you say can it be the fuel. Must be. Injector runs bad, then runs good then runs bad, can't be electrical as you never touched electrical stuff. Our did you?
    A man made problem is the worst problem to solve.
    Can you remove the injectors and go have a spray pattern test done and i presume they can also do a pressure test. Maybe that's the best way to start before purchasing new ones. In fact you can take the new one of yours and do a comparison with the existing ones.

  6. #1586
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    Removing and testing will cost the same as replacing. Very few shops have the equipment to test these PD injectors. Idle deviances are within spec so Im still hoping that its still bad fuel or another blocked filter.

    Im pretty mad and at the same time relaxed. It is what is. Its just not nice and my gariep GTG plans are smashed.

    So is life. It could be worse.

  7. #1587
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    It seems to me a DPF fitted vehicle could be costly with non-standard or tampered fuel. Im looking at a Tiguan 4 motion diesel or a Kombi/crewbus 4 motion, both got DPF (not sure about the Kombi) Should I rather go to a 4 motion Amarok that doesn't have a DPF? Or would he same problem occur on all vaiants?

    I'm questioning it since the problem still persist and could possibly not be the injectors. Huge learning curve coming up for all of us....
    Sent from my iPhone


  8. #1588
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    Quote Originally Posted by Rebel 4x4 View Post
    It seems to me a DPF fitted vehicle could be costly with non-standard or tampered fuel. Im looking at a Tiguan 4 motion diesel or a Kombi/crewbus 4 motion, both got DPF (not sure about the Kombi) Should I rather go to a 4 motion Amarok that doesn't have a DPF? Or would he same problem occur on all vaiants?

    I'm questioning it since the problem still persist and could possibly not be the injectors. Huge learning curve coming up for all of us....


    I don't think Marius's Treg has got a PDF filter.

    Chris.

  9. #1589
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    I don't have a DPF or CAT.

    I have been spending long hours thinking through all the systems and theorising.

    This morning I thought about the EGR valve. Under full boost the EGR spring should keep the EGR valve closed regardless of the exhaust pressure in the exhaust manifold, that effectively is the same pressure trying to push the EGR valve open.

    So I thought.... what if that spring is weak? That would bleed exhaust flow to the intake killing boost. It fits the scenario where the car misses under boost.

    A simple disconnect of the vacuum hose the EGR won't work as the spring needs to be strengthened.

    I dug up my old EGR blanking plate, installed it and went for a long hard (average for the trip was 18l/100km) drive using full throttle, part throttle, high revs, low revs etc.

    Try as I may I couldn't get it to judder or misfire.

    Maybe too early to tell, but it seems I may have found (very weird in my experience) a completely unrelated issue to the injector failure issue.

  10. #1590
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    Daai kar......
    Ricoffy is my voorkeur keuse vir Koffie, en Toyota vir n Bakkie, en ek dra net 2 tone hemde..

  11. #1591
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    Quote Originally Posted by Reenen View Post
    Daai kar......
    Jy weet dit! Duurste universiteit klasse nog ooit!

  12. #1592
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    Quote Originally Posted by MariusFourie View Post
    Jy weet dit! Duurste universiteit klasse nog ooit!
    Sterk staan, Marius - die nuutste probleme was darem nie die kar se skuld nie en ek dink dit wat nog voorlę gaan klein dingetjies wees.
    Bite off more than you can chew - then chew!

  13. #1593
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    Quote Originally Posted by Reenen View Post
    Daai kar......

    Ja DAAI KAR is "getoor"

    Chris.

  14. #1594
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    Quote Originally Posted by Vossie View Post
    Sterk staan, Marius - die nuutste probleme was darem nie die kar se skuld nie en ek dink dit wat nog voorlę gaan klein dingetjies wees.
    Die probleem is dat dit swak timing is. Ek wil moontlik begin met iets wat dalk my inkomste gaan sny vir n ruk so kar probleme op hierdie stadium is nie welkom op hierdie stadium nie. As dit aangaan sal ek dalk moet wegsny en n klein golfie of iets kry totdat kurses klaar is.

  15. #1595
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    So it means all the time there was nothing wrong with the fuel?
    Sent from my iPhone


  16. #1596
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    Quote Originally Posted by Rebel 4x4 View Post
    So it means all the time there was nothing wrong with the fuel?
    Not quite. The bad fuel killed an injector as per the error codes. It also clogged the fuel filter ad per picture.

    This is just an unrelated issue as per my car tokoloshe giving me hassles as soon as I get too comfortable.

  17. #1597
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    To add fire on to the 2 SO debate and injectors. http://4x4community.co.za/forum/show...3&postcount=20
    Sent from my iPhone


  18. #1598
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    Quote Originally Posted by Rebel 4x4 View Post
    To add fire on to the 2 SO debate and injectors. http://4x4community.co.za/forum/show...3&postcount=20
    Tell that to my dad who has done over 100'000km on his v10 treg with 2SO and his injectors are well within spec.

  19. #1599
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    Ok so it could be that the egr was the problem all along, and the injector an additional problem but perhaps not severe enough to be noticeable.

    The egr issue possibly disappeared after changing that injector due to disassembly of things during injector change, but soon returned to its old ways.

    The upside to all this is that your other injectors are likely to be fine, and also a chance now that the fuel was genuinely not contaminated.

    Treg is getting a bad reputation, but also need to remember the age and mileage here.
    2007 Touareg 3.0 V6 TDI (Facelift, Air, Rear Diff Lock, Rear Mounted Spare)
    2008 Audi A4 B8 2.0 TDI (Multitronic)
    2009 KTM 990 Adventure (Daily Commuter & Weekend Fun)
    2012 Imagine Trailvan 4-Sleeper

    * consumption needs to be seen in the context that the vehicle is towing an Imagine Trailvan 50% of the time.


  20. #1600
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    I talked too soon.

    went for a drive today.

    After about 30 minutes the problem returned.

    disconnected MAF - limp mode
    disconnected fuel temp sensor - no change
    disconnected IAT and boost sensor - limp mode
    loosened the fuel cap - no change

    the N75 valve operation seems fine and the VGT mechanism moves as it should.

    Could it still be some bad diesel that affects the combustion properties once the fuel heats up a bit?

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