I didn't notice this because my drive to work is only about 12 minutes. After about 20 minutes or so on the highway, it bucks or just looses power. So I was shifting back and forth between 4th and 5th, which would refresh the car and it would run fine for a minute or two. Then I discovered I could leave it in 5th and just periodically let off on the gas for a second (fully)and then hit the gas again. It was a bit strange speeding up and then slowing down constantly. Bad for gas milage I'm sure.
So I figure it's electrical, something is telling it to go lean, maybie the O2 sensor or wiring. Not sure why this doesn't happen in the first 15 minutes. Hoping for advice before playing with the O2 sensor.
Thanks again. Les