1990 240 wagon check engine light

[3basecharlie]

while I was driving home the car stalled, I pulled over and it started right back up, but the check engine light was on. It drove fine , I had to make a stop and when I tryed to start the car it took a couple of trys. When I got home and checked there was fresh oil leaking from somewhere above the water pump behind the timing belt.
I have had this car since it was new and have never had to check the check engine light, I've understood that it can be read without a special reader, is this correct or do I need to go to a garage and get it checked
Thanks again for the help and direction you always share

[billofdurham]

You can read the fault codes yourself. Instructions can be found at tests with codes. Scroll down to the fourth post.

Anything you don't understand post for more help.

Bill.