I have just bought a DHSE 2001 and find the apparently classic problem of difficult to start when warm, but starts first flick if cold or hot. The "dealer" here in Kampala said sight unseen "new injector pump" There are old blogs on this forum talking about a quick fix cheap solution with a new heater relay i think. It has done 125,000 miles: do i need a new pump anyway? are the quick fix relays still available?