Hi, my VT is running like a dog on petrol, normally always runs on LPG, im figuring it might be something to do with the fuel supply system such as fuel pump, injectors maybe oxy sensors etc rather than electrical as the car runs perfect on LPG but when on petrol it shakes like a train, almost stalls on idle and dies when i try to accelerate, i tested the injectors with a screwdriver to the ear to determine that they all function however i dont know if this means the fuel is actually getting through, how can i test the fuel pump (does it need to come out of tank) could it be a blocked filter, do oxy sensors work on LPG the same as Petrol? any help appreciated guys!