9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
I'm having some major boost problems with my Vtuner Stage 0 Aero right now. I'm hoping you guys could help me figure this out. First, here's what I've got/replaced.
Brand new boost pressure control valve and hoses
Brand new Bosch coilpacks and Denzo iridium plugs...