wingroad has a problem of MAF sensor it lacks power should i continue driving? on 2002 Nissan Pathfinder

diagnostic code is P0103 the gears smtimes dont change but i have tried my best even fixing new sensors,checking wires, at times a black/grey smoke comes out in the morning

Asked by for the 2002 Nissan Pathfinder
seek furthher diag and est from your mech