Aug 18, 2009 #11 Roadrashvtec Well-Known Member Joined Feb 23, 2009 Posts 187 Reaction score 0 Location Wisconsin prolly the fuel pressure regulator I had the same exact problem stuff with ur cats are mostly po420s or threshold in the banks of the cats
prolly the fuel pressure regulator I had the same exact problem stuff with ur cats are mostly po420s or threshold in the banks of the cats