Things to Know When Replacing Toyota/Lexus/Denso AFR Sensor

A correction; I actually got a P1135 code but then I cleared the code and it didn't come back. I got a P1155 code which got stored and stayed until replacement.
Below are links to the videos where I got the fake rear sensor;
Fake Rear Sensor Denso 234-9007: • What to look out for w...
Real Rear Sensor Denso 234-9007: • FINALLY GOT THE RIGHT ...

[@jacoe33333]

I got one that is already greased on amazon, but there is only writing printed on there very small. I think its fake.