Weird Idle,and didnt pass smog. help? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

BoostWanted · 03-15-2012, 09:02 AM

When i start my car it idles at bout 1100 then drops down to about 800. And when I sit there with it idling sometimes it makes like a puffing sound and you can feel the car shake.

Onto my smog, I failed the hc by about 20 and my no by about 300. Maybe I have a vacuum leak? How do i check? Sorry for not exact numbers. I dony have my smog paper right now.

Also another thing is when I'm driving and I put the car in neutral to coast to a light or something it stays at about 1100rpm until I come to a complete stop.

03-15-2012, 09:02 AM	#1
BoostWanted Zilvia Junkie Join Date: Jan 2012 Location: Vallejo, CA Posts: 352 Trader Rating: (5) Feedback Score: 5 reviews	Weird Idle,and didnt pass smog. help? When i start my car it idles at bout 1100 then drops down to about 800. And when I sit there with it idling sometimes it makes like a puffing sound and you can feel the car shake. Onto my smog, I failed the hc by about 20 and my no by about 300. Maybe I have a vacuum leak? How do i check? Sorry for not exact numbers. I dony have my smog paper right now. Also another thing is when I'm driving and I put the car in neutral to coast to a light or something it stays at about 1100rpm until I come to a complete stop.