Hello, so i have a slight problem. when I'm in gear (any gear), my car sometime sputters. like its not getting enough gas or to much mixture of gas and air. it only does it in gear. i don't know why its doing that, i was thinking maybe fuel filter or pump? or maybe it would be because of my tps? my tps is connected however i do not have a adjustment screw and spring. so its reading about 4 volts on the tps. also my rpms sometimes jump from 1k to 6k. the rpms also sometimes stay at 2k or 3k after i start my car until it idles for awhile. any ideas?

 

hmm, idle control valve maybe. I wouldn't blame the tps if it revs smooth at idle

 

well i found out this morning that my car now likes to rev to 4k at start up then stay at about 3k. after about 2 times of flooring the pedal it'll drop to 1500. and how would i check the idle control valve?