Reasons for ENGINE RPM ERRATIC

ENGINE RPM ERRATIC 
a) DEFECTIVE MASTER CONTROLLER SWITCHES 
b) DEFECTIVE CPM,ADA, DIO CARDS 
c) DEFECTIVE FEF 
d) SOLIENOID DEFECT 
e) DEFECTIVE GOVERNOR 
f) DEFECTIVE FUEL SYSTEM 
g) DEFECTIVE TURBO 
h) DEFECTIVE ENGINE 
i) DEFECTIVE DIO 
j) DEFECTIVE AMPHENOL PLUG