Intermitent Idle When Warm

[uva207]

Alright, here is my problem. My car will idle fine upom start up and will continue to idle fine throughout the day. The only time I experience problems is when the temperture outside starts to warm up (around 50-60 degrees). It will idle anywhere from 1000-2500. I can sometimes lower the idle by pressing the gas pedal quickly and completly to the floor. This will usually lower the idle to around 1000. I can also lower the idle by physically pressing over on the throttle cable on the throttle body. Its almost like somehting is not letting the cable return to the home position.

Adjusting the BISS will adjust the idle but idle still surges at warm temperatures. How long I drive the car dosent seem to have as great of an effect as the warm weather does.

Vaccume pressure around -15 to-20 at idle. No leaks found.
Any help with this would be greatly appreciated.

95 eclipse gst

 

[Maccgyver]

I too havea problem with a rough idle when the engine warms up. IT is fine when I first start it and drive but once it is closer to operating temperature it gets rough and drops down to 500 rpm sits there then goes back up and then will idle for awhile but it eventually dies or if I hit the gas it will go up and then on the downsweep of the rpm it dies. Changed the coolant temp sensor and it seems to have gotten somewhat better but it is definitely not solved.

 

[uva207]

Well, I dont think I have a sensor issue because when it is ideling high, if I put the gas pedal to the floor quickly and then release it quick then the idle will drop somewhat....
I am thinking either too tight or loose a throttle cable or butterfly valve getting stuck partially...