Does the dealer have to perform the Self-Learning clearing procedure?

Question

I replaced the air/fuel sensor for Bank1, Sensor 1, the Bank 1 catalytic converter, and Bank 1, Sensor 2 oxygen sensor and the next day the P1273 code came on. The vehicle runs good.

Answer 1

Hi there

It's better if the dealer does it because it won't affect anything else on the car. However I would call around some other shops might have a scan tool that is capable of performing the procedure. You can also do it by disconnecting the battery, but that can lead to other issues with the way the engine runs and is not suggested.