Tiburon L4-1.8L (1997)
Oil Pressure Sender: Testing and Inspection
Electrical Inspection
1. Using a suitable ohmmeter, check the continuity between the terminal and the body. If there is no continuity, replace the oil pressure switch.
2. Insert a fine wire shown in the illustration, then check the continuity between the terminal and the body when the wire is pushed. If there is
continuity even when the wire is pushed, replace the switch.
3. Connect a suitable vacuum pump with gauge to the switch oil hole, then apply a 50 kPa (7 psi) vacuum.
4. If there is no continuity when the vacuum is applied through the oil hole, the switch is operating properly.
5. Check to see that air doesn't leak. If air leaks, the diaphragm is broken. Replace the switch.
