As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SBP - EN ROUTE LAX TO MRY, LEFT ENGINE OIL PRESSURE INDICATION REPORTED NEAR RED LINE. ALL OTHER ENGINE PARAMETERS REPORTED NORMAL. PRECAUTIONARY DIVERSION TO SBP ACCOMPLISHED. MAINTENANCE REPLACED LEFT OIL TEMP/PRESSURE INDICATOR. GROUND OPERATIONAL AND LEAK CHECK SATISFACTORY. AIRCRAFT RETURNED TO SERVICE. (X)