Bests & Worsts Reviews from Amazon

got a used car and couldn't pass inspection due to a bunch of monitors not activated after changing to a new battery... some stores were telling me to change the cat converter which would have cost me hundreds of dollars. i didn't believe them, bought this tool and did the whole driving profile thing for a few days while checking with the OBD tool. sure enough it showed me the car monitors were all finally activated. passed emissions test with no issue. it's a bit light and flimsy but it works.