need help with 2004 Toyota tacoma

my truck check engine light is on and it say to change o2 sensors. so I did this and the truck is still doing the same thing and the check engine light is still on. does anyone have any idea what could be causing this?

it is a 04 prerunner 4d

 

Did you replace with OEM 02 sensors? A lot of the time the P0420 code means bad cats, if this is the code your getting?

 

I don't know the code it is putting up all the computer said was o2 sensors and I changed both of them.

 

I'm trying to help and not be mean but did you clear the check engine light by unplugging and re plugging the battery?

 

yes it went off until it the engine warmed up and then it came back on.

 

the truck is skipping out when the engine runs for a little while. lost all power on take off and when you get up to about 55mph the truck starts to shake and the rpm drop.

 

Bawling like a calf?
Sure sounds like plugged catalytic converter.

 

I got a guy at as shop to hook it up and he told me that both of the o2 sensor was out and something like blank 1 and blank 2 sensor.