Contour Enthusiasts Group Archives Forums Modifications Duratec Maintenance very dirty TB and intake, holy cow

These CEGers can be so helpful and patient! Thanks for the feedback. I don't know why I didn't think of the burn oil from the PCV and the nasty pre-cat'd gasses from the EGR being a huge factor. I still couldn't believe the 'gunk' immediately viewable. Can't wait to try these improvements.