oxygen sensor

[2wheel]

Need help. Had code for down stream sensor and replaced it. Lasted about 30 miles before code was back.
Changed it and upstream with NTK sensors. Have code back again in short time,
4.7 engine that runs rough and does not come up to power as it should.
Anyone else ran into this?

 

[Hootbro]

What is the code or codes? Just because a oxygen sensor throws a code does not mean the sensor itself is always bad and may just mean the sensor detected a condition that merits the fault and cause can be further upstream.