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?

by in Fayetteville, GA on August 10, 2010
1 answer 2 comments
ANSWER by on August 10, 2010
Are you getting power to the oxygen sensor heater?\ terminal on the sensor?
COMMENT by on August 10, 2010
don't know how would I test it? thanks a lot !!!!
COMMENT by on August 10, 2010
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.
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