Nissan Repair: Altima codes P0335 and P0725, new sensor, position sensor

Question
I had the codes pulled on my car and was given the list of P0335 and P0725.  From everything I have seen and been told, I should just replace the crank position sensor.  I did that, and about 50 miles later my engine light came back on and the car performance is not as bad as it was before I replaced the sensor.  What should be my next step?

Answer
Cory,

Rescan the car for codes and check the harness and connector at the sensor.  It would be doubtful that a new sensor would fail so soon.  I have seen bent pins on the connector cause this and water in the connector as well as wires that have been damaged.