I got 2010 with 160k miles, now I just got P0139 with CEL someone has any info which part number and how to replace it? Is it DIY? Where its located? Cleaning it will help? Or I have to replace it?
I believe that's downstream O2 sensor if you're messing with that you should replace them both and get the proper parts and make sure they go in the right place don't mix them up That's your best thing to do when you start getting up into the high mileage areas just replace the pair you can replace one if you want and then the other one will code next week so you can get under your car twice or once is the way to look at that basically
This is the part number O2 Oxygen Sensor 234-4400 for it, IDK Amazon selling one for $120, eBay selling them for $16 to $26
You should be able to find denso or the good boss units real ones in the $56 range or something like that was easy they sit so long in the car to me it seems like it's worth paying that I wouldn't want to pay $90
