Can anyone explain why or how on my digital dash cluster that everthing works except the fuel side area and the coolant, oil pres. and volt meter. All other areas light up except these. Yesterday my computer ( B-betty)said that the fuel was low but the car only took 7 gals before the pump shut off. I have tried replacing the power supply box but still the same problem. Are there lights inside that can blow or may this be another problem. Please help with advice before I teart the dash apart!