What was found
#1 ENGINE CONTROL LIGHT AFTER START. GROUNDED - YES. PERFORMED EEC BITE PROCEDURE REF B737-800 FIM 73-00 TASK 801. FOUND FAULT CODE 75-10431 VBV DEMAND AND POSITION SIGNALS DISAGREE. PERFORMED FIM 75-32 TASK 801 AND ACTUATOR TEST PER B737-800 AMM 71-00-00 FAULT CLEARED. ENG CONTROL LIGHT EXTINGUISHED. PERFORMED 2 #1 ENG STARTS AND IDLE CHECKS WITH NO FAULTS FOUND. REACCOMPLISHED EEC BITE WITH NO FAULTS NOTED. A/C OK FOR SERVICE.