02 tacoma

[Arw02tacoma]

I have an 02 tacoma 3.4 v6 currently fthrowing check engine light and code p0420. I have already replaced both 02 sensors does anyone one else had any idea or recommendations

 

[Changeling]

I have an 02 tacoma 3.4 v6 currently fthrowing check engine light and code p0420. I have already replaced both 02 sensors does anyone one else had any idea or recommendations

Sometimes the check engine light is off base on some things.

First thing I would do is clean the MAF sensor then clear the engine light by unhooking the battery for about 10 minutes. Then see if the light comes back on.

 

[Arw02tacoma]

I replaced the sensors an reset it then 2 weeks later the engine light came back on and it was same code