po134 code..

i just ran a diag on my car at autozone cause the check engine light came on, the code means o2 sensor no activity(bank 1 sensor 1)
i was just wondering if anyone could help me with possibilities that could cause this other than a bad o2 sensor

(PO134-Upstream HO2S stays at center) I would replace it.
(bank 1 sensor 1 is PO135)

make sure that its plugged in and that the wires are ok. if the wiring looks good then you just need to replace the sensor.

ok, thanx, the wiring looks good, and i got a friend witha eclipse he is scrapping, so he said i could use his old o2 sensor to test it

scraping an eclipse?? NEVER! there should be a law against it or something? what year and model and what's wrong with it, maybe i'll buy it for parts.