I recently had a local repair shop replace my O2 sensor and Catalyst converter on my 98 4cyl EX Honda Accord. Now when I accelerate after being idle and stopped on a flat surface my car will jerk. Could this be caused my the replacement of one or both of those parts? They seemed to be working fine since the Check Engine light is now gone. Please also reference this post: http://groups.google.com/group/rec.autos.makers.honda/browse_thread/thread/661f672616354390?hl=en Thanks, --TJ