Question

2008 Chevrolet Silverado 6 Cyl with engine code P0016, Is a new sensor required?

Answer 1

P0016 Crankshaft position  camshaft position correlation

Was there any recent repairs to the timing chain? Or a front engine seal such as the crankshaft seal done? what you need to do is more of a mechanical inspection dealing with the Crankshaft position sensor, at its timing reluctor, or even the timing chain.

Answer 2

P0016 Chevrolet Code - Crankshaft Position - Intake Camshaft Position Not Plausible
Read more: https://www.autocodes.com/p0016_chevrolet.html