My MIL lamp has been on for about 3 months with not issues at all, car has 110,000 miles and is good condition. My car failed smog this year and 2 years ago, had to have the dealer perform hocus pocus for a few hundred dollars to get it to pass, and it did. There is no sign of any problem with the car except the MIL lamp. The car runs fine, the gas cap sseems ok but perhaps that is the problem. Any thoughts?