I have had my check engine light come on three times in the past two months. Once it went out by itself after a few weeks. The other two times there was no code to read on my OBDII scanner. It gave the message of no current codes and none stored. I reset the light on both of these occasions after trying to read the code with the light on. The light stays off for several weeks before reappearing. The car runs fine with nothing apparently wrong, but I want to find out what the problem is. I may take it to Autozone the next time the light comes on to see if their scanner pulls up a code.

Any ideas?

Len
'99 E300TD 73,000 miles