I have a JDM ITR 98 specs...mods are mild with only SARD Fuel regulator, cam gears, JDM CTR cams, 64mm TB, splitfire spark plugs, VAFC II, modified chip. and Top Fuel Carbon Fibre intake system.......oh yes..a TODA flywheel, exedy clutch and Mugen LSD 1.5 way...

the car jerks at 2rpm (not always but at least once a day, btw i am a daily driver)...usually happens at low speed or during downshifting from 4th to 3rd gear....sometimes its stalls even while driving at low speed in 3 or 4th gear at about 2k rpm...i was contemplating on fuel issue but my fuel pressure meter says the reading is fine...any ideas