Defender 110 TD5, 130k but well looked after FSH as they say. From cold slow starting and when it does fire up no throttle response for up to a minute then normal but with big cloud of white smoke. From warmish starts quicker but same throttle response problem, no white smoke. Tried: Purging- no difference, changing fuel filter - no change, checking fuel pump filters - all ok, oil to ECU- a little, cleaned up no change. When purging the fuel pump sounds normal and there is no gurgling etc - anyone got any ideas anyone ? The local mechanic is baffled and the diagnostic tool said the aircon was not working - is correct as it isn't fitted. Everything else normal.