Drove my 54 TD4 home, went to start it up and wouldn't, called R.A.C. patrolman hooked his computer up and it stated transmission range sensor faulty!!! then he sprayed some stuff in a air pipe and it sort of started, then he said it was a fuel pressure problem, then he said it used to be petrol engine (now diesel), how can I check this was the case and re-registered, then i just tried to start it and it has done, what do i do now? just drive it and see what happpens, and oh it was the inlet crankcase brerather pipe that made it spew out blue smoke 3 weeks ago. Phew