Same situation here. 2006
Same situation here. 2006 IS250, outside the 9 year window. Been complaining about the issue for a while now but without the lights and codes, they said they couldn't do anything. My lights are on all the time now and it's idling rough. I feel like this issue happens right outside the window for the fixes. Kinda like it's planned that way? Who knows. I'm just so frustrated because I don't want to drive this car without a fix, Lexus won't pay for it, and my dealer says it's a $12-$14,000 fix out of pocket! Any new developments out there??