This is about my 99 S80 2.9 non turbo. I was driving on the highway today at 75MPH and all of a sudden the car lost power, like it turned off. The RPM went to zero and all the lights on the dashboard were coming on. After I pulled over on the sideway I tried to turn the car on again and it turn and and ran fine. I drove it back 100 Miles back home and it ran fine. It runs fine now. Any ideas on what the problem may be. Im taking it to the dealership to get it checked out on Tuesday morning. The check engine light has been coming on.

I had the ETM Trottle body replaced back in September of 2005 when I first bought the car at 80K miles. The car now has 215K miles on it which are all highway miles. I have never gotton the ETM cleaned. Could it be that the ETM is going bad again. Also the car has never had the PCV service done on it.