Del Sol Si VTEC L4-1590cc 1.6L DOHC (VTEC) MFI (1997)
Oil Pressure Sender: Testing and Inspection
1. Remove the YEL/RED wire from the engine oil pressure switch.
Engine Oil Pressure Warning System-Switch Test
2. Check for continuity between the positive terminal and the engine (ground) with the engine OFF.
^ If there is continuity, go to step 3.
^ If there is no continuity, replace the switch.
3. Check for continuity again, this time with the engine running.
^ If there is no continuity, the switch is OK.
^ If there is continuity, do not replace the switch; first check other possible causes in step 4.
4. Make sure engine oil level is OK, then check engine oil pressure.
^ If engine oil pressure is OK, then replace the pressure switch.
^ If oil pressure is low, remove, inspect, and, if necessary, replace the oil pump.