so i just replaced my throttle body (thanks russian mob) and my trailing coil because they were both screwed up when i got the car, the idling was way messed up, but now theyre both fixed and i took my car out today and didnt run it that hard cuz its the first day with it working well but in the higher gears it kinda shakes a lil and acts funny so i let off... does anyone know what this could be from or have they had this problem before?

 

More information needed. Could be any one of several different causes based on what you say. Things like wheel out of balance, bent or loose wheel, bad tire, out of balance drive shaft, loose U joint(s), bad CV joint, and so on.

Do you feel the "...kinda shakes a lil..." in the steering wheel? Or in the floorboard and seat? Any noise? Speed when it shakes? Does it only do it when you brake?

Suggestion: You might want to change the title of this thread to something like: Car shakes-help.