Code P0339, crankshaft position sensor?

Hello, my vehicle triggered the P0339 error code. At this time, I've changed the sensor, checked the fuse, and inspected the wiring harness link to the sensor. I drove the car around for about 500 miles and tried several different driving sequences that I read about online. But the code still remains. I have no noticeable issue with the vehicle. Starts right up, does not stall or feel like there's any loss of power. Smog test is due and my concern is that the smog won't pass and that there may be some other issue with my vehicles. Any trouble shooting ideas I can try / inspect? Thanks for your help.