Hello, My avensis 2008 TR gave me trouble within the last week, with lack of power and puff of black smoke. management light on, vsc light and trc lights all on. Took her to toyota dealer and they said she needs a new egr valve and manifold cleaned out 32,000 miles on the clock.They cleaned egr valve until they can fit her in next week. that made a big difference as she drove home with full power. All work covered under warranty. starting to wonder about the D4D engine design.