Team, please help me out here. I have for a few months running my 4runner with CEL, TRAC lights on knowing that i have an issue. The codes read P0174 and P0430. Both of these codes point to Bank 2 so i will try to replace the O2 sensor first to see if it would fix the issue. I had similar mileages on my Lexus ES350 and it was resolved with replacing just one of the O2 sensors. My 4runner SR5 V6 has 175k miles so far.
In my case, which sensor should i replace and does anyone have a diagram that shows where they are? I tried searching but was not able to get a definitive answer for my situation here. My mobile mechanic wasn't too sure either but he agree to swap other the sensors first since P0430 is a generic code for CAT failure and he doesn't want to swap that out.
I found a few options on Amazon. Let me know which one i should get.
Downstream Right
https://www.amazon.com/Denso-234-480...ct_top?ie=UTF8
Downstream Left
https://www.amazon.com/dp/B0013TQRLI...I2LTY40FY39XFH
A more expensive one is also listed.
https://www.amazon.com/Denso-234-905...nner+o2+sensor
In my case, which sensor should i replace and does anyone have a diagram that shows where they are? I tried searching but was not able to get a definitive answer for my situation here. My mobile mechanic wasn't too sure either but he agree to swap other the sensors first since P0430 is a generic code for CAT failure and he doesn't want to swap that out.
I found a few options on Amazon. Let me know which one i should get.
Downstream Right
https://www.amazon.com/Denso-234-480...ct_top?ie=UTF8
Downstream Left
https://www.amazon.com/dp/B0013TQRLI...I2LTY40FY39XFH
A more expensive one is also listed.
https://www.amazon.com/Denso-234-905...nner+o2+sensor
