Hi All, I am experiencing a judder when accelerating away from cold on partial throttle, including when the outside temperature is mild but the engine is cold. This only last for approx 200 yds (M) If I floor the throttle the car pulls away fine. I just look an idiot either pulling away from home like a kangeroo or like a boy racer. When the car is warmed up, acceleration is great from partial to 7/8ths open, but if I open up full throttle it feels like the engine is holding back, but not miss firing. i.e. Hesitant. I have swopped the Idle control valve for a good spare and also the throttle position sensor for the same. I was thinking of disconnecting the battery to reset the ECU but any other suggestions? The car is a H4 with a RS1800 zetec all currently standard. It has done this for a few months now and I have bought fuel from various garages so I don't think its fuel and as the cold fault disappears when its warm I don't think its a loose connection. Any suggestions would be gratefully received. Kind regards Trevor
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