Hello everyone! My Check Engine light has been going on and off quite frequently (every few minutes or so) on my '91 525i. I have tried the stomp test and I cannot get it to work. I have owned the car coming on 2 years in a couple of weeks and have never had the Check Engine light come on before.

There is also another weird phenomena... From around the time that the light started coming on (about a week and a half to two weeks ago) I have been consistently getting somewhere between 30 and 40 mpg while cruising the highway, at speeds from 40-60 mph. It is almost unreal, and the car has been abnormally smooth. I don't know what is going on, but I would like to know before it suddenly explodes on me. I just started using oil for high mileage cars (I am at 102,000) and I don't know if that has anything to do with it. Please help me!

Thanks a lot...
Andy