Volkswagen Passat B5 Discussion
I have chipped (no idea what program, bought it chipped) 1.8t, with 93k on the engine. Tonight, I did a 2nd gear pull, spiking about 19psi, but when I hit about 5k rpm, there was a huge knock and I flipped out and let off. What could be causing that? I was at optimum engine temp, and use Mobil...