So when its sub 40 I just about cant start my car. Battery is fine, just dies on me. I do take time to let the fuel pressure build up and I start the key and i have to gas it for 15 seconds to make sure the idle wont drop. when it does idle on its own its at about 490rpms then if I put it in gear it goes to about 900 - 1000

 

did you check the TPS?

 

An engine heater may help >> http://www.jcwhitney.com/autoparts/P...wflag-1#review

If you're not close to an outlet, maybe a car cover would work. I bought one from autozone for $40.00.

 

mods? tuning issue?

 

+1

 

only mod is my mufflers.

 

ttt

 

well tps would be my first guess. I had it happen to me this summer, it did the same kinda thing.

 

lol - at first I read it as 40 below (which would be 40 below 0), and I was all - the first thing you need to do is move some place warmer!

/got nuttin - sorry

 

check ur wires/plugs. i had problems with my honda doing this when it started getting below freezing. changed them out with some new ones and it starts up quicker.