Thanks. Will probably have to put on the computer At the dealers.I overlooked the part where your engine light came on. Your tractor is large enough (over 25 horsepower) and new enough (newer than 2014) that there is probably a lot of computer control. You will probably have to contact the dealer to read the computer and see how things are configured. In all likelihood you have a diesel particulate filter and it may not be working or regenerating correctly.