I took my RR to the local specialists today for a mini-serivice (oil and filter change) and to try to find out why it ran so rough on petrol (misfiring and backfiring).
Runs sweet as can be on LPG!
He hooked up his computer and said it was a knackered knock sensor.
Have any of you lot had such problems and do you REALLY think a knock sensor would cause this???
Oh, he also said all three blend motors were knackered . Happy days.