A technical service bulletin for some 2011-2012 Nissan Altima, Maxima and Sentra models recommends reprogramming the ECM (engine computer) if the code P0101 is stored and there are no driveability concerns. How the code P0101 is set. The code P0101 means that the signal from the mass air flow sensor (MAF) is out of expected range.
My 2001 Nissan Sentra shows a P0171 and P0101 code. I tried to clean the sensor and the part after that (I don't know the name) and it's still showing the engine light. The sensor seems like new ...
P0101 nissan sentra
2011 Nissan Sentra with 80,000 miles and the cvt transmission is making a high pitch noise when accelerating. It increases in RPM but doesn't increase power. Nissan is aware of the issue with these transmissions but refuse to do anything about it if the car is out of warranty.
Find 2015 Nissan Sentra technical service bulletins here. Each TSB record contains data such as the failing part for the vehicle make and model.
Sentra P0171 system too lean (bank 1) I've been told this means that there is too much air in the air/fuel combination. It has been suggested that I use a fuel injecter cleaner, did that no change.