Have a 2006 GTX and rode it Saturday and it ran fine. Went to ride Sunday and when I cnnect the key it said check engine and would not start at all. I pushed the set button five times and the code it is throwing off is P-1656. Can anyone give me further information about this code? Anyone had this problem. Hoping this is not too expensive to fix since I have only owned this SeaDoo about amonth. Thanks!