Oil Pressure Gauge (Electric Only)
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. 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 "Oil Pressure Sending Unit Resistance" chart.
Oil Pressure Sending Unit Resistance
| Pressure psi (kg/cm2 ) | Resistance (Ohms) |
|---|---|
| 0 (0) | 10 |
| 14 (1) | 70 |
| 28 (2) | 130 |
| 43 (3) | 185 |