bogging,stuttering ka please help.

[jesse53]

So i bought a 1993 240sx hatchback a few months ago. Love the car but it has some stuttering issues when acceleratig and a very high idle speed. I changed the tps, and coolant temp sensor. Brand new cap and rotor. New plugs and wires. Ive tried fuel system cleaner and ive looked for a vacuum leak but nothing. When the car is cold it runs great for about 5 min but after it heats up it sputters and does not pull when accelerating.I know i shouldn't beat the car to bad but it seems like it will hesitate and stutter until 3k then from 3k pull into 4 and then just let go at about 4000 rpms. Anyone have any suggestions ?

[-RJ-]

try cleaning out the maf and getting some tb cleaner and clean the tb. i would also clean out the icv

[spindrift187]

Id suspect your knock sensor.