Oil Pressure Display

The oil pressure sending unit detects engine oil pressure for the cluster. At zero pressure (0 psi) resistance is zero ohms, and at maximum pressure (80 psi) resistance is approximately 90 ohms. The microprocessor converts oil pressure sending unit signals and activates a 21-segment bar graph which displays oil pressure. When bar graph changes from 7 to 6 segments (about 4 psi), the low oil pressure indicator lights.