Have you figured out I m having the same issue

  Maybe it's like a crank sensor relearn , I would warm engine to operating temperature , make sure the O2 sensors are working ok and fuel trims aren't reading lean, then Try a couple brief wide open throttle revs to the the rev limiter in park , then take car out like it's a Chrysler SGM engineer that designed it like that, beat the heck out of it to make it learn the hard way , LOL

    

If your car ECM # is in one of the list below, it needs reprogramming. If not, you still can reprogram it but you need to check if there is a new file for yours. Just enter the first 5 digits of your ECU Part #: click the reprogramming tab on the Nissan site below. For re/programming you need the NERS program, a laptop, the  MaxiFlash J2534 a $29 24 hours subscription to https://www.nissan-techinfo.com/J2534.aspx

3RF8A, 3RF9A

3RF8B, 3RF9B, 3RF8C
3SR4A, 3SR5A
3SR4B, 3SR5B
3SR4C, 3SR5C
3SR4D, 3SR5D
3SR5E

 Well you wasted money there's a bulletin for that issue hopefully you didn't charge a customer for the maf. Use laptop with flash box and Nissan subscription