[Schulisco]

Originally Posted by riparian

Thanks for the great link to the manuals, and also the google tip on searching across forums for the problem. Those Franny videos are excellent, and I've tested vacuum and cleaned the ICV. I even bought a replacement ICV but it did not resolve the issue. I am going to check the mixture setting as mentioned above, and also review the other forums and will report back.

I found it interesting that the behavior in that other video I posted had the same issue as mine, even though he says it's normal. I know it's not normal because I have listened to plenty of 3.2 cold start videos on BaT in which the motor starts directly to 1100 RPM with no roughness.

Welcome

I'm not into the Carreras, I own a SC only...but the roughness is from my point of view also not normal. What I read about this issue might be one of the following:
1. Temp sensor
2. Mass Airflow Sensor misadjusted/worn (there is a resistor sensor inside, could be worn)
3. DME relay (although with hot engine everything works fine...)

With the manuals you have all the necessary information to check all values and electrics/electronics. Only a step-by-step troubleshoot will solve the problem.

Good luck and keep us posted!

Thomas