253
hmmm (lemmy.world)
submitted 1 year ago by to c/hmmm@lemmy.world
23 comments fedilink hide all child comments
 
you are viewing a single comment's thread
view the rest of the comments
[–] 2 points 1 year ago* (10 children)

Does that give really detailed diagnostics? I’ve got a GTI that’s showing a P0299 underboost code that’s still around after swapping the turbo and I double checked everything and have no idea what to try next.

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 10 child comments
    •
  • [–] 5 points 1 year ago (5 children)

    I have OBDeleven and have used VCDS a couple of times.

    OBDeleven does give detailed diagnostics but any coding, testing or adaptations are locked behind a not so cheap subscription.

    I honestly regret buying it, much rather pay a bit more for vcds and not have to do the subscription thing

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 5 child comments
    •
  • [–] 1 point 1 year ago (2 children)

    I really just need to get more info than “low boost” so would I need a subscription?

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 2 child comments
    •
  • [–] 2 points 1 year ago (1 child)

    Yeah the subscription sucks, but once the adaptions are done you don’t really need it.

    Does VCDS have an app integration?

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 1 child comment
    •
  • [–] 3 points 1 year ago

    One model works with phones, haven't tried that one though.

    Yeah except the testing. I fixed the hvac and tried to do adaptations, had to pay for a full year subscription again.

    I guess it depends on how much you mess around with your car.

  • permalink
  • fedilink
  • source
  • parent
  • [–] 1 point 1 year ago (3 children)

    I’m not a GTI expert, but have you looked at the diverter valve? Or the charge pipes and connections? Either could be leaking boost, and I had a similar issue with my Mini years ago that turned out to be the diverter valve.

    Good luck!

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 3 child comments
    •
  • [–] 1 point 1 year ago* (last edited 1 year ago) (2 children)

    I replaced the diverter valve, same problem.

    The charge pipe was disconnected at first after I replace the turbo - metal clip wasn’t locked - but still low boost after that was fixed.

    Had my usual mechanic do a smoke test and no leaks.

    And the turbo had a brand new boost control valve and diverter valve.

    And the other weird thing is my old turbo seemed to be fine, with no play in the wastegate or friction.

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 2 child comments
    •
  • [–] 4 points 1 year ago (1 child)

    lol is the boost pressure sensor bad?

    It’s gotta be that or rings because it’s going somewhere. And it sounds like it’s all coming out of your wallet right now. 😅

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 1 child comment
    •
  • [–] 2 points 1 year ago* (last edited 1 year ago)

    She’s my first project car and I guess she wanted to be a doozy.

    Also if my rings were leaking 8-10 psi of boost you’d think it wouldn’t drive at all, let alone be about as good as a regular Golf

    Maybe it needs a good nut blasting in the intakes

    ETA: Also my coil packs gave out a while back and my mechanic did a compression test on it and everything was fine.

  • permalink
  • fedilink
  • source
  • parent