I realize you posted this years ago, but just want to say thanks for giving me a major clue about an issue with my '99. Your PCV discovery is a perfect description of what I've got going on, including the smoke test. Now I know where to look. Thank you!

I have a complete set of new rear brake pads and rotors for a '96-'98 AWD car. Part numbers 31262094 and 31261186.