Hello everyone, my car is acting up on me again. When I am driving at low RPM's the engine seems to stutter, randomly jerk and even buck every once in a while. The plugs, cap and rotor have about 5k on them and all of the plug wires are tight and snapped in to place. I have replaced all of the vacuum lines and everything else I can think of except the oxygen sensors. The thing is the car runs fine at full throttle so it is definatley a closed loop issue. Any input would be greatly apreciated. I hate to put parts on the car I don't need but the O2 sensors might be the next step.