got new skunk2 harness and computer

[TEG01GSR]

hey guys/girls. quick question i hope. i just got a new skunk2 harness and conversion kit for my 2001 integra GSR, and i was wondering why when it gets cold outside, it does that jumping rpm thing? know what i'm talking about; it rev's at an idle for no reason. oh and if anyone has one or knows, why every so often does it just not start, i have to take out my new computer and put my old on in, start it up, and then put the skunk2 one back in. any help would be awesome

[SiGNAL748]

Its called "rough idle"; its common among those who have swapped their ecu's.

Although, I dunno any reason why your car won't start.