Could the code P161B be the reason that my car will start sometimes, & other times it won't?

Question

Or would it be the throttle actuator control system?

Answer 1

P161B  PCM internal error - torque calculation

This code condition is  the result of the no start or even stalling of the engine.A lean condition or air that gets past the MAF (mass airlfow) and is unaccounted for can stall the engine and set a P161B