Car will cut out at or above 1000 RPM's. While driving, or running on 1995 Buick Regal

Engine light is on, have replaced both oxygen sensors and the throttle position sensor. This made the vehicle idle much better, but it will still cut out when accelerating.

2 answers
DON'T buy more parts until posting codes! post code #s , not just description.
Have it scanned for trouble codes.