Bad or no cold start and low idle speed.

[rjkertz]

I have a 2000 WS6 with a M6, only modifications I know of are shorty
headers with stock catalytic converters and dual exhaust with crossover
pipe, no mufflers.
Currently has stock tune, runs well with little or no problems but in cold
weather, freezing or below won't start very well if at all, if I can get it
started it idles very low(450 rpm range), any suggestion how to correct this?
I bought car with current modifications and never had a problem until cold weather came.

[kyphur]

I would think that it's something with your airflow being low.

[68Camaro]

did you get this figured out? post a log and tune if you didn't - I just fought my way through this problem and may be able to help.

[rjkertz]

I was blaming stock tune on problem because of the few modifications the car has, turns out its not the tune but the fuel pump won't run when the temperature dips down below freezing. Still haven't figured it out I would say I just need to replace the fuel pump but it runs and engine starts when you command it on with the scanner. So I'm still at a loss on this.