Nissan Altima throws code P 505
98 Altima had total engine rebuilt. Head was warped, machined smoothed, runs great.
Now engine light on, throws code P 505 and needs Ca. smog cert. Tech said it will be
about $400.00. He let me know he isn't sure that it will fix problem. My question is
does 98 Altima need to complete a specific drive cycle for the computer to reset/ re-
learn after rebuilt or do I just keep replacing sensors and parts.Most sensors, all
gaskets were replaced when engine was done.