Have a look at the other thread in this group about spark plug wires.
"Subject: Re: Do spark plug wires OUGHT rather than need to be changed "

You might be able to  see some leakage.  Open the hood in some nice dark
location.  On my 88 Dodge that was running poorly at the time, it looked
like a blue light show.  There was a spiderweb aura alongside each wire, as
well as some obvious crossover dancing.  

Cold makes it harder to start, but there's probably also some moisture that
has seeped into the wires overnight.

The computer works like the old carbs used to in that case...
if you touch the accel while starting it will send more fuel, if you pump it  
- even more.

if you hold it to floor will send less

I had same problem with Taurus, find it WOULD start if i tapped it twice THEN
held it to floor.

Sprayed out the Throttle plate area and ISC with Throttle body Cleaner (NOT
CARB/CHOKE CLEANER)

ISC IAC IABP are the same thing  = Idle Control