| Check that the engine oil level is correct Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARY Check the condition of the fuel supply circuit and make sure that it is working properly carrying out the test See Test 1060OA LOW FUEL RETURN PRESSURE CIRCUIT CHECKCheck the operation of the low pressure supply circuit See Test 1060OB LOW FUEL DELIVERY PRESSURE CIRCUIT CHECK | End of diagnosis | Oil level incorrect | Restore the correct engine oil level Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARY |