2014 Hyundai Sonata Limited 2.0L please help

After backing out of driveway and switching to drive vehicle did not light up the N or D on the shifter, or on the dash. Check engine light popped on. The code read P0705. I ordered the nuetral safety switch and replaced. After turning car back on check engine light was gone. I let the car warm up, then tried too put into drive. Did not register with vehicle and check engine light came back on.

I did not have the code cleared when I had it checked, anyway this could be stored in the memory until it is cleared, or is this another issue?

Prior to replacing the neutral safety switch, did you place the transmission into neutral and set the parking brake?

And did you use the special, guide pin when installing the neutral safety switch?