I have a 2005 Toyota Camry V6.
The check engine light was on for while and I cleared it once using an OBD2 reader. It didn't come up for while. I used the .87 petrol and I thought that is what causing the issue. So I mixed some premium gas and the check engine light got turned off. Now I'm still with same gas mixture and the check engine light is turned on. I couldn't find the issue since the drive on my car is smooth.
I read the error code using a odb2 reader and P0430 was the error code. I checked a couple of places online but couldn't really find what could be the issue might me.
I have replaced Spark plugs, Air filter, PCV valve, transmission oil and engine oil.
Attachment : these are the reading from my car (did a freeze frame and took picture of the error. Any suggestions/opinions are welcomed.