My engine light has come on. I took it into the garage for a diagnostic and he said it was the knock sensor after further testing I was told that there was an imbalance between the clutch and the flywheel causing Vibrations and the engine light to come on is this something that has happened to anyone else I was quoted just under £1,000 to get it fixed so I'm trying to get as much information as possible before spending that kind of money, any help would be greatly appreciated thank you.