What was found
(CAN) PILOT REPORTED ENGINE STOPPED DURING POWER OFF STALL. RECORDS INDICATED (2) SID97-3C FUEL SET UP ADJUSTMENTS CARRIED OUT IN THE PREVIOUS FIVE DAYS OR 13.1 HRS PRIOR TO THE INCIDENT. SID CHECK REVEALED UNMETERED PRESSURE OUT OF LIMITS BY -1.1 PSI, LIMIT IS +/- 0.2 PSI. MECHANICAL FUEL PUMP REPLACED, PUMP OFF S/N B06LA110, NEW PUMP S/N B06LA111 INSTALLED, FUEL INJECTORS, INLINE FILTER AND ALL FUEL LINE REMOVED CLEANED INSPECTED AND RE-INSTALLED. AIRCRAFT RELEASED CONDITIONAL TO SATISFACTORY TEST FLIGHT AND TEST FLOWN UNSATISFACTORY. EITHER PUMP WAS UNABLE TO BE ADJUSTED TO OBTAIN LEANING SCHEDULE LIMITS OR UNABLE TO RE-ADJUST TO MEET SID SPEC AFTER TEST FLIGHT. MECHANICAL FUEL PUMP REPLACED ONCE AGAIN W