i have an 88 dodge dakota i have codes 11,12,16 coming up,the check engine light is not on and i dont have fire going to coil,coil wire or distributor,replaced d.cap,main computer,coil,rotor cap and still no fire,and fuel pump not working can it be the key cylinder and the run position gone out in cylinder?motor is a 3.9 6 cyl

Optional Information:
1988 Dodge dakota ,truck 3.9/6 cylinder

Already Tried:
replace distributor cap,rotor button,coil,coil wire,and main computer