1998 Chevrolet Silverado K3500 454 no spark
 

I have a Chevrolet Silverado K3500 with the 454 gas engine that will not produce any spark. So far I have replaced the distributor cap and rotor, the coil, ignition module, plugs and wires. The crankshaft sensor is working correctly. The pink wire to the ignition module and coil is reading at 12 volts, the white wire with black stripe that goes from module to coil is registering power. The only wire that I can not get any signal from is the white wire that goes from the pcm to the ignition module. After finding that out I replaced the relays and still no change. The oil pressure guage is also maxed out not sure if that could be associated with the issue or not. I have also ran an OBII tester on it and no codes. If anyone has an idea what the issue could be I would greatly appreciate it.