cold start

I have an 2001 Ford Ranger. I bought it used from another person a few years ago. For the last couple years I have had an issue with it starting or rather not starting when the weather starts getting cold. Many things have already been replaced on this truck since I bought it about five years...

I have a 2.9 that acted up when cold weather came on.When I start it there's no high idle like there normally is.I have to hold slightly open throttle for a few seconds or it stalls.Once it's warm it's fine,I've replaced the intake air sensor in the manifold and the coolant temperature sensor...

so i tapped the check valve on the fuel rail and got a healthy stream of gas, i pulled a plug and grounded it and have a good spark only things i can think of are bad gas maybe a lil water in the line i accidently forgot to put my gas cap on and it sat for a week outside what would be the...