hi my management light comes on after starting up but if you keep revs up it does not been to numeros dealers including rmb toyota in teeside they charged me £200 pounds could not find the problem said it needs new injectors and pump costing £3200 pounds because it had traces of red diesil in it i took it away and next day customs and exise turned up to my farm and tried to dip my tank because workshop manager called them so i cant take it to them no more please can anyone help as i will not take it back to them and it wont go no where. when light comes on if you turn off then back on its ok for a few minutes please help