mixture ratio learning procedure

Question

06 1.8 Nissan Sentra, air mixture ratio learning procedure? keep getting p2a00 code after exhaust cat back replaced. no. 1 02 sensor has been replaced.

Answer 1

Hi there

There isn't a relearn for the fuel mixture. The computer will do this on it's own, however you have to reset the fuel trims to zero. If you do not have a scan tool that can do this specifically for you, then disconnect the battery for several hours. That should reset the trim.