Hey guys, i have an 02 337 where today driving down the highway when it felt like my car died and came back to life, twice. When it came back the car wouldnt produce boost over 4 psi. (Normally pushes 20 psi peak and tapers to 17psi)
Car runs fine at an idle, did a brief check of boost and vaccum lines cant see anything damaged but it was still hot so i couldnt tell for sure.
I did notice that my diverter valve had black residue on the trumpet.
Any help would be greatful!