My wife has been complaining about our 95 850 turbo for about a week. She says that after she makes a rolling turn and tries to accelerate, the car is non-responsive. This did not seem to happen from a dead stop.

I have noticed on several occasions, yesterday being one, that first thing in the morning the car will start and rev and putter, rev and putter, rev and putter. I assumed it was just the cold snap we just had. My wife said today that she drove it and thougth that it wasn't going to make it out of the driveway. She said it felt like it was going to stall.

I drove today and noticed a little sluggishness; however, nothing big until I took the whole family to dinner. The car would not start. Being a novice at repair, I called for a tow and they called for a ride. One last ditch effort was the shake the sh*t out of the thing that was humming when the key was in position II (plastic covering over the throttle linkage???). To my amazement, it started, and I drive home.

I went back out after about ten minutes, started and turned off the car. I took the car back out again and it died while driving (maybe coasting) and wouldn't start. I rolled to park and it wouldn't start. Went inside the store, came back out, wouldn't start, shook the humming and the car started. Drove about 50 yards and died. Since it wouldn't start, I removed the plastic covering and tapped the constant idle valve??? with a screw driver, and the car started.

I drove home and started one more time after. I noticed a lot of smoek when I started it in the parking lot. Of course, that could be because I pegged it to 3000 rpms. I thougt I saw smoke from under the hood when I got home finally. I pulled the codes before driving it to dinner and the ones I got from A2 are 433, 435, 231. Maybe 231-slow front 02 sensor means that the 02 sensor is the issue? Sorry for the long post.