Surging when cold

[NissanNismoZ]

So ive noticed in 35F or lower, it sounds like the starter turns slower than normal, and it surges on acceleration, until its warmed up some..it usually doesnt take long for it to stop, but..is this a problem, considering it goes away after its warmed up? Thanks!

[Slartibartfast]

Mine is a little reluctant in the winter, too. I give it a little time to warm up, and when it's really cold (single digit night temps) I've found that a piece of cardboard duct taped across half of the grille helps it warm up and stay warm while driving. A cold battery is less powerful, cold oil is more viscous, and a cold block probably doesn't burn the fuel too well either.

[Tungsten]

It's most likely the throttle position sensor acting funny until the engine warms up and warms up the sensor along with it. Also, as you warm up the oxygen sensor turns on and evens things out.

[NissanNismoZ]

Thanks for the suggestions guys! it's appreciated

ill keep the cardboard idea for the winter, thanks!