o2 sensors on 2006 Toyota Tundra

emissions code pop up Poo37
bank 1 sensor 2
replaced it with a bosch
check engine light pops up right away
changed the sensor after the cat - towards back of truck
any help?

1 answer 2 comments
Are you getting power to the oxygen sensor heater?\ terminal on the sensor?
don't know
how would I test it?
thanks a lot !!!!
Get a wiring diagram and a voltmeter, find the wire that provides power to the sensor heater and check for 12 volts when the engine is running.
Find a manual with wiring diagram here: http://bit.ly/mitchell_repair_manuals_online
As I always say, diagnose first, then replace. You may have wasted money on a sensor when it was a blown fuse or a loose connection.
Good luck.