Okay, a little background; a while back my SES light would light on the freeway for a few seconds then go off. Now, it's going on much more often. I don't notice any weird driving characteristics on the freeway, but once I get off, my truck idles at a "lopey" or unsteady 600rpm. So, I did the paperclip thing in the ALDL and got code 12 (flash--flash,flash) and then I got two more codes after that flashed three times. BUT for the life of me, I can't find in any of my manuals where these flash codes are given. I know what the various codes #'s mean, but I don't know what code numbers correspond to the flashes I'm getting. Here they are: (Flash---Flash, Flash, Flash) (Flash---Flash, Flash, Flash, Flash, Flash) Could someone please tell me what code numbers these are - that'd be much appreciated. THANKS.