my 240sx is acting funny.. ANYONE PLEASE HELP

[djmatt79]

Hi... I don't know If I'm posting in the right place and if not please forgive me.

I have a stock 96 240sx with a ka24de. I was on the highway going high speeds.. then got off and I notice the car being real jerky. approx. 3000rpm.

anyways... I thought it'd be a missfire or something so did a tune up. Rotor, Cap, wires, Plugs. Then ran it and thought it was ok until it started again..

Seem to do this after the engine is hot especially on the highway at speeds 120km/hr.
Any ideas?? anyone?? Throttle position sensor??? Anything will help.

Thank you in advance.

PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEe HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

[gwar10]

does it jerk when you hit around 2k? if so its your tps sensor,i replaced my fuel pump 3 times thinking its it,and it always worked but about a month it would start doing it again,so i figured id buy a tps and if it didnt work take it back,plugged it in WOOOOO WAYYYY BETTER!!!!,so check that,check maf,leaky injectors,and lmk

[dlucke17]

I agree, its either the TPS sensor or small chance you have a vacuum leak... Is there anything else out of the ordinary that is going on??? Any noises, smells, or other actions that have started? Any performance loss or does it just shake a little after heating up?