Although the Mazda MX-5 has packed on some pounds since its first model that debuted at just under a ton, the weight gain is slowly eating into its core function as...
Have a myvi with BOT using YRVT manifold, turbo, intercooler etc.. it comes with this bosch pbv, the vacuum hose runs back to the intake manifold but somehow when boosting even as low as 0.1bar i hear a whoooshh...