Q: P0321. Internet says it could be my crankshaft sensor?

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checked my car with scanner , and p0321 and p0740 came on i wanted to know is the crankshaft sensor connecting to the torque convertor clutch ? and if i fix my crankshaft will the car run better without the code p0321?

My car has 163000 miles.
My car has an automatic transmission.

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