Funny Idle Problem - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

matlock · 10-15-2003, 01:40 AM

HI, I just bought a 1993 240sx and the only problem it has is a bit of a rough idle.....basically it idles at between 500 & 900 rpms it like revs up and hits 900 then drops to 500, is there a reason it is doing this? I am not quite sure what it might be I am somewhat of a newb with engine tuning, I talked to the local nissan mechanic and he said idle adjustment or vaccum leak......I am not sure how to identify and solve this problem, any help would be wonderful.

10-15-2003, 01:40 AM	#1
matlock Zilvia FREAK! Join Date: Jul 2003 Location: California Age: 40 Posts: 1,169 Trader Rating: (0) Feedback Score: 0 reviews	Funny Idle Problem HI, I just bought a 1993 240sx and the only problem it has is a bit of a rough idle.....basically it idles at between 500 & 900 rpms it like revs up and hits 900 then drops to 500, is there a reason it is doing this? I am not quite sure what it might be I am somewhat of a newb with engine tuning, I talked to the local nissan mechanic and he said idle adjustment or vaccum leak......I am not sure how to identify and solve this problem, any help would be wonderful.