Just picked my car up, with a brand new un. 2012 Kia Optima 2.0 turbo. Bought the car in June of this year, with 151000 miles. Last week, going down I-77 coming back from meeting a forum member, car goes into limp mode, and a flashing cel. Code was p1326, knock detection sensor. I pulled over, scanned, and cleared so I could have some power to get out into traffic. Took it to Kia last Monday, they scanned and assessed on Tuesday, and called me that afternoon with a all clear from Kia Corporate to replace motor under recall. I picked up a free rental car Tuesday after work, and got a call today that the car was ready, exactly seven days in to out. Replaced long block and intake. As much of an inconvenience as it could have been, I have to say, I'm impressed. I'm the third owner, and the new motor probably cost about the same as I paid for the car, lol. Other than that, the car is in very good shape. @Mike Overlay just put a new turbo on a couple months ago for me, so I should be good for awhile.