Idle up and down ??

[jdb10srcoupe]

So I have a 2010 3.5 with a cvt and have had it for about 7 months and have 2,500 miles on it. The other day I was at a red light and took my foot off the brake and then back on and the car felt like it was going to stall but didn't. I've been keeping a eye on the idle and it bounces from 700rpm to 1100 rpm. Is this normal??

[devilmagic]

So I have a 2010 3.5 with a cvt and have had it for about 7 months and have 2,500 miles on it. The other day I was at a red light and took my foot off the brake and then back on and the car felt like it was going to stall but didn't. I've been keeping a eye on the idle and it bounces from 700rpm to 1100 rpm. Is this normal??

Nop.. its not normal. my normal Idle time is 600-750 and lately i encountered couple times where the rmp will drop from 600-750 range to near 200 rmp. the car was parked during these encounters. The car feel like its going to stall or die on me lol .. but as soon as the rmp reaches the 200 range it will bounce back to 600-700rmp.. I believe its the O2 sensor .. or some cases its the a bad engine coil. Im gonna get it checked on monday.

[elfenlied8]

2500 miles for 7 months! I only had my car for 2 months and i have 3,000 miles. =(

[devilmagic]

Here is a link to one of my post regarding to the Header that leads to the O2 sensor problem. and i have update on wat i did on the o2 sensor and hoping to have the Idle problem solved. post5836455.html#p5836455