Bad Starting and running - Cold Only

[Len]

This started yesterday having trouble starting from cold.
When warmed up it runs fine and starts first time when still warm, even after a few hours.
So its a very cold problem.

The problem, starting is a problem, needs a lot of throttle and will cut out as soon as revs drop. Will not idle.

So is there some kine of choke mechanism?
A solenoid type thing that holds the throttle open when cold?

Car is a 1.8T 2000 W reg.