Ok, possible causes are the O2 sensor, short or open in the wiring harness, or the powertrain control module.
While the overwhelming majority of the time it is the O2 sensor, I always recommend testing to be sure.
The Bank1 Sensor1 is located screwed into the exhaust manifold that faces the firewall - see attached
You can replace it based on it being the usual issue, but I cannot guarantee it without testing. Directions are attached
If for any reason, you can't rate my answer OKAY, GOOD, or EXCELLENT/3 STARS OR HIGHER today. Please reply and let me know why, so I can help more/better. All follow up responses are FREE, after completing the required rating
Please remember to rate service using the separate rating page. Thank you
Please note that if you have a subscription service, you still are required to rate service, however you are not charged again. This is just so that your expert is credited for their time and services. Thank you.