Good job on the sensor
P1283 isn't very dreadful, about 90% of the time it's just a bad A/F Sensor (front O2). In this case bank2, b1 would be P1273. What makes it funky on older Nissan products is an ECM software problem, which makes it keep cropping up even though the problem is already fixed. You simply need to clear the ECM's learned memory to prevent that. After repair, warm it up, yank the MAF connector, then let it idle until it throws a flatline code (P0102). Stop the engine, clear the code, restart and let it idle for 10~15 more minutes.
Voila, memory cleared.