Hello.
Please see the attached TSB's from Nissan, one is for the original Altima P0101 fault in the original post and one is for your vehicle. You will need a dealer to update/reprogram your cars ECM/PCM software.
Hope this helps with your repair. Please keep us updated on your repair outcome and do not hesitate to contact us again for further information or assistance.
Thanks for using 2CarPros.
Dave. H
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Monday, March 1st, 2021 AT 5:15 AM