Why cant dealer fix code p0101 on Nissan Sentra

Question

Dealer keeps changing parts but light keeps coming back on

Answer 1

Hi there

This code is related to the mass air flow sensor and isn't typically a difficult code to resolve. If they are having issues, the wiring harness needs to be tested and then if the harness is good the issue is likely the computer itself. Not knowing what all has been replaced or attempted it's difficult to give a complete answer.