You can also spray a little ether or propane around the hoses and see if there is any surging. My Murcie always runs rough when cold or after a hot run and let set for ten or 15 mins. The minute I drive hard again , it smooths out. Have you checked your fuel? Small amounts of water in the system will do the same thing. I am going to run a can of seafoam through mine. The problem with many lambos is they sit a lot and have lots of opportunity for fuel to go bad or water to condense into the system. Modern fuels break down really quickly.