<<My timing is at 5 btdc now. Have you found that the carbon buildup is likely on high mileage 16v engines? I have almost 200k miles.>>
- You DEFINITELY have carbon buildup. << I don't believe there are any vacuum leaks, since all the lines were replaced when I got the car about a year ago. Intake boot looks fine for now, but it doesn't look like they will last many more years. Any tips on how to check for small vacuum leaks would be helpful? The car starts fine, runs fine, etc.>> - REMOVE and carefully inspect the bottom of your intake boots for small cracks. Alex.
