What was found
DIVERTED, WHILE IN CRUISE ENGINE EPR MODE 1 FAULTED ENGINE SYS 1 FAULTED AUTO THROTTLE MESSAGE SWITCHED TO N1 MODE. COULD MAINTAIN PARTIAL POWER ENGINE 1 IN CLIMB DETENT N1 NO GREATER THAN 79 PERCENT. N1, ENGINE 1 AVAILABLE EGT ENGINE FOUND TO BE 100-200 DEGREES WARMER THAN ENGINE 2 EPR MODE MESSAGE WAS FIRST NOTED. R & R ELECTRONIC ENGINE CONTROL IAW 73-22-34. R & R P2/T2 SENSOR IAW AMM 73-22-11-000. THESE PARTS WERE REPLACED FOR TROUBLESHOOTING PURPOSES BUT DID NOT CORRECT THE PROBLEM.