Hello, I have a 1993 SHo with automatic trans. It has approximately 160,000 miles and runs great. My check engine light comes on after about 15 minutes of driving and will not go out until the motor is turned off. Upon restart, it takes approx. another 15 minutes for the light to come back on. The O2 sensors have recently been replaced so that should not be the issue. I do not have the equipment to do a diagnostic on the car so I am kind of shooting in the dark here. Is there somewhere I can at least get a list of the codes and what they mean? Any suggestions on what my issue might be? I am older and not able to work on things as much as I used to. Any help would be much appreciated. Thank you.