Gunns

I think my car might be misfiring. The car runs fine when the engine is started cold and the car is driven for any lenght of time. If I park the car after it has got up to temperature, leave it parked for 15-20 minutes, and get back in, it starts up fine but the car feels like the throttle is flucuating if I try to keep it at a constant speed some times the car will even jurk like its not getting fuel (doesnt do this very offten at all any more). What should I check for???

Info

92 CX
94 B18C GSR
new plugs
new wires
new cap
new rotor

Any help would be great.