Electric Oil Pressure Gauge
- Turn ignition on and pull sending unit wire off sending unit. Gauge should indicate about 43 psi (3 kg/cm2
). If not, check sending unit wire for short to ground. If wire is okay, replace gauge.OIL PRESSURE SENDING UNIT RESISTANCE
Pressure psi (kg/cm2 ) Resistance (Ohms) 0 (0) 10 14 (1) 70 28 (2) 130 43 (3) 185 - Connect wire to ground. Gauge should indicate no pressure. If reading remains high, sending unit wire is broken. Check resistance of sending unit as indicated in chart.