• beefpig@sh.itjust.works
    1·
    8 days ago

    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!

    • Boomer Humor Doomergod@lemmy.worldEnglish
      3·
      8 days ago

      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.

      • beefpig@sh.itjust.works
        4·
        7 days ago

        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. 😅

        • Boomer Humor Doomergod@lemmy.worldEnglish
          2·
          7 days 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.