In order to get the throttle to relearn you will need to clear all the codes. So, in order to clear this code, we will have to find out why it is still active/permanent.
Basically, this is telling us that the o2 sensor is not reading the correct or desired oxygen content. So, we need to find out if we have anything that would cause this issue and if not, we need to replace the sensor.
I see you replaced the upstream o2 sensor, so we need to check out the rest of this info.
Also, this may also point to the issue that is causing the idle issue. This may be a vacuum leak so here is a guide that will help with this:
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
Let me know if you have questions. Thanks
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Tuesday, April 26th, 2022 AT 11:22 AM