P2a00 2006 Nissan Altima Sedan - could it be my mass air flow sensor?

Question

could it be my mass air flow sensor?

Answer 1

its possible, check for intake leaks first. you can try to clean the mass air flow sensor with mass air flow sensor cleaner.

after you are done doing those two things, I suggest you disconnect the battery for an hour or so to clear the ECU air to fuel ratio "self-learning"