hey all, ive got an escort gti with an odd like fault, to start. when i got it, the idle was always at 1250 it never went up and down but never went under,also whilst driving, after 2000rpm if you let off the throttle the engine will jerk once. so far ive tried an air mass meter, intake temp sensor, the only thing thats help was the idle which does go down a bit since the air mass swap. anyone got any idea, any help would be great thanks

 

im guessing because its not a cossie no one knows lol

 

Check CO and lambda value.
tabetha