95 rivi s/c no power all of a sudden

hope someone here can help me out.

i was driving and the car was running great,come to a stop and have almost no power at all.as soon as i press on the gas its like its missing but idles good.it would do this every once and awile before but just for a second or two and be back to normal.im seem to be getting good spark and about 40psi on the fuel.anyone out there had this problem or know where i go from here.thanks ahead of time for the help.have already fixed several problems by just reading up on this site.love it.

Any DTC's? This could be the idle air control (IAC), a vacuum leak, mass air flow (MAF) Exhaust Gas recirculation (EGR) or throttle Position Sensor (TPS). Hard to diagnose sporadic problems like this, without an on-site inspection.

I just had the same problem till it finally quit altogether..couldn't find it..wound up being the crank shaft sensor...just a thought