Oldsmobile/Buick Repair: 1990 Buick Regal 3.8 no fire, camshaft sensor, crankshaft sensor

Question
i am stumped. my 1990 buick regal custom 3.8 will not start. it does not have fire. i have replaced the ignition module, the coils, the crankshaft sensor, the camshaft interrupter, the camshaft sensor, and the ecm.( i used the old prom with the new ecm) my understanding is that the prom is good if you can enter the diagnostic mode via the obd-1 connector. ( it does and the code i got before i cleared it was 42) of course i checked all fuses. there is power to the ignition module on turn key, but no voltage at either the crankshaft sensor or camshaft sensor. i suspect a faulty fusible link but do not know where to begin. if you have any idea of what the problem is or what else i should check please let me know.

Answer
hi rob ,yes check fuse links check all ground wires check bal pulley fire ring.check timeing chain.wireing to module harness to all sensors.it will be a broken wire you just have to go through the harnesses very careful one at a time you will find it ty please rate my help billymac