How do I program the 1997 Nissan Maxima ECM for the new mass air flow sensor I just installed?
I got P0174 on a 1997 Nissan Maxima (fuel system for bank 2 was too lean). I just installed a new mass air flow sensor but it’s choking the engine right now. The box came with the MAF sensor says to re-program the ECM (computer controlling the air flow). How can I do that without going to the dealer? Thanks, A: Did some idiot at Auto Zone tell you need a new Mass Air Flow sensor? That is the least likely problem although it could be but doubtful. It’s probably an O2 sensor in reality. It could be an intake leak, the left O2 sensor (which is probably the real issue) low fuel pressure, bad injector or an exhaust leak before it’s a mass air flow sensor, however as I said it could be but I doubt it. The mass air flow sensor is placed in the stream of intake air. It measures the intake flow rate by measuring a part of the entire intake flow. It consists of a hot film that is supplied with electric current from the ECM. The temperature of the hot film is controlled by the ECM a certain amoun
