Today, after our monthly club lunch a few of us went for a spirited drive over calaveras rd, during the "cool down" my check engine light came on, no problem as all the gauges looked normal. When I got home I jumpered the service check connector to read the diagnostic codes off the check engine light, I read six long blinks followed by eight short blinks,however there isn't a code 68 listed in the manual? there's a code 6 for the TW sensor but there's no code 8 listed, now the manual is for '91 models, my X is a 95 so I'm wondering if there are other codes for later model years? if not, does anyone know what a code 68 is???