Crankshaft position sensor issues

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2012 Silverado 1500 z71 4x4 5.3 v8 having either Po335 or P0336 codes coming on intermedily. So far, I’ve replaced the crank position sensor more than once, I changed the camshaft position sensor 1 time. I have changed the connector for the crankshaft position sensor. I tested the wires a for the plug and confirmed the proper refrance voltage of 5 volts at the power wire, the ground is showing to be good, and the signal wire has 5 volts with the key in and when cranking the signal wire shows what looks to be the normal voltage drop it should. I changed all main engine grounds. I checked the crankshaft for excessive end play and everything felt normal, I put a bore scope in the crank position sensors hole to inspect the reluctor wheel all the teeth are there and don’t look bent damaged or dirty. I changed the battery tested the alternator is charging properly, and the codes still return and when they do the rpm gauge doesn’t read and the truck runs poorly