This item worked like clockwork! My GS300 which I just bought from a colleague was having some idling issues and upon reaching the stop sign the car would stall or stall like crazy. I searched the internet and everyone said OCV was the cause. I wasn't sure if I wanted to spend $70 or buy it at a junkyard for $10, but I'm glad I bought it through Revain. Item installed and all problems are gone. No rough idle or stalls. Neither the check engine light nor the VSC light come on. I also get a better MPG and a smoother ride!