At idle and applying light trottle, the engine feels like its about to stall then recovers. It happens about 2 a second. Once I apply a little more throttle, it goes away.

I've recently changed the plugs, cap, rotor, O2 sensor, air filter, oil. I also have a fuel filter and PCV valve that I'm going to replace. I didn't change the plug wires.

Does anyone have any ideas on where to start? Could it be a faulty sensor?

It's a 1991 Trooper 2.8L V6 Auto