Just purchased a 1999 Corolla after my mechanic checked it out. I drove 35 miles to and from my mechanic and it ran fine. Upon purchase and driving the vehicle home, the check engine light came on. The car was chugging and stalling. Showed misfiring on the computer and my mechanic replaced the wires and plugs and the car is running fine. 3 days later, the check engine light comes on again. The clock blinks on and off, it sometimes just blacks out, and when it is working, blinks on and off with the turn signals. Code shows "evaporative something" problem. My mechanic reset the check engine light and told me to drive the car a few days to see if the light reappears. The clock still blinks on its own and blinks with the turn signals. Otherwise, the car is still running well. Anyone ever experience this problem? Any technical service bulletins out on this? Any suggestions? Kind of depressing since I've only had the car for a week and was buying it based on Toyota reliability. I should have found this site and read some of the posts before purchasing. Thanks for any help you can give me.