Gtr Hesitant Only At Start Up

[nsta]

Hey guys, my new motor is great, only problem is when its cold in the morning, it splutters a bit, like a feeling you get when a cooler pipe is look or come off....once heated ~3-4 mins driving, its fine, and doesnt happen at all....is this common???

Thanks

[R.3.2.G.T.R]

got an 02 sensor installed?

[GTAAAH]

I get this too, slow and jerky when it's cold (but up higher rev's it's fine) it's only started since swapping from two r32 gtr afm's to two r33 gtr afm's.. I spose it's good in one way because i always have to wait for the car to warm up b4 driving.. but it's annoying as

[a20089]

Yep happened with my car, fitted a Power FC and it went away.

[nsta]

Cool - good to know its not something overly bad - first time it happened i was not going to drive it and was turning back home, but as i was turning back on the way it all seem to fix it self, thats when i knew its a startup thing, so i have never really worried too much about it, once it gets going, its fine! - maybe 1 minute driving before its all ok