What was found
CREW REPORTS #1 ENGINE CONTROL AMBER LIGHT ILLUMINATED AFTER ENGINE START. GROUNDED - YES. #1 ENG EEC LOGGED FAULT 75-20431 VBV DEMAND & POSITION SIGNALS DISAGREE. REPLACED J10 HARNESS. EEC BITE SHOWS NO FAULTS. ACTUATORS TEST PASS, RAN ENGINE #1 WITH NO DISCREPANCIES, NO ENG CONT. LIGHT. ALL OPS NML, REF B737-800 AMM 73-21-06, 73-21-00, 71-00-00, B737-800 FIM 75-32/801.