my neighbours got a n reg (mk6) escort with 1.6 zetec engine, it is an automatic.

within the first 1-2 minutes of it running it runs rather lumpy, engine shakes about like the revs are too low (only slightly though) and just sounds poorly, and if you put it into reverse, then drive, it will just cut out, (starts straight back up) after 2-3 mins of running it runs normally, engines runs smooth and doesnt cut out.

do these have some sort of auto choke system or what controls the extra fueling when cold? cos its like it runs like you havent got the choke out enough if you get me, but obviously it doesnt have manual choke.