What was found
PHX - - FLT 0769 - ON TAKEOFF ROLL OUT OF PHX EN ROUTE FOR SMF NR 1 ENGINE OIL PRESSURE WAS LOW, REJECTED TAKEOFF, ON TAXI BACK TO GATE OIL PRESSURE RETURNED TO NORMAL. MAINTENANCE INSPECTED THE NR 1 ENGINE OIL PRESSURE WIRING, NO DISCREPANCIES WERE NOTED, REMOVED AND REPLACED THE NR 1 ENGINE OIL PRESSURE INDICATOR, ENGINE RUN OPERATIONAL CHECK WAS GOOD. VENDOR FUNCTIONAL TEST OF OIL PRESSURE INDICATOR S/N 464A WAS NO FAULT FOUND. UNIT TESTED AND INSPECTED IAW CMM 31-00-31.