tigz22

my escort gti slightley missfires at iddle and the revs drop n the car judders then revs go back to norm then same hapens again. alos when accelarating the car pulls back and judders. i have had new lambda sensor/iddle valve/ maf/ plugs&leads/& had the ecu reset. cud som1 plz help my car is doin me head in lol. no 1 seems to be able to find the fualt and even the computer cant find any codes?