No I didn't put diesel in it lol but ever since the code you can smell a strong odor of gas from the exhaust and black smoke if you get on it after being easy on it for awhile. Actualy my wife drove it the other day to the store and back 1.5miles each way and said it idled rough when she was leaving the store and I watched when she backed in the drive and it was puffing black smoke the whole time.