What was found
AT CRUISE PRIOR TO ETOPS ENTRY: RECEIVED "FUEL CONFIG" EICAS MSG. FUEL SUSEPTED. TOTALIZER & CALCULATED FUEL WERE 1500 LBS DEFFERENCE & INCREASING. FUEL QUANTITY INDICATING A 2,300 LBS SPLIT & INCREASING. COMPLIED WITH QRH, 1 ENG SHUT DOWN MANDAY RETURN TO HNL. L TANK INDICATED 2300 LBS LOWER THAN RIGHT & INCREASING TO MAX KNOWN 2600 LBS SPLIT.(<P>REMOVED AND REPLACED L/H FUEL TRANSFER & SHUTOFF VALVE PER B767 AMM 28-22-01-004-001 AND 28-22-01-404-011. OPERATIONAL CHECK GOOD IAW B-767 AMM 28-22-01-404-011. NO FUEL MIGRATION FOUND</P>)