So today I decided I go for a drive, and that I did all the way to jersey, on my way back I decided to fuel up. 10 minutes later I'm stuck in traffic on the GW bridge, very little movement. When I noticed service engine light come and the EML light, known as the extra money light. Also idle was very erratic. If I drive in high speed idle is good and engine ran fine. I got to a friends garage and scanned code also cleared it. Made it back to CT on a fresh tank of gas and no more light or erratic shifting. My concerns is can something worsen that I have to pat attention before putting him away for the winter.