| ok i have a 92 318is and it seems like every time im sitting im sitting at a light or stopped the rpm needle is jumping slowly from like 500 up to 1000..when it goes down to 500 it revs up again, somtimes even dropping soo low that the car starts to quiver...like those times ur not giving it enough gas in 1st and it starts to die. idk it i need to tighten my idle screw or somthing but if yall have any suggestions they would be greatly appreciated. thanks. | 
Linear Mode
