Just replaced bank 2 sensor 2 on my pickup and today the engine light comes on a on 2004 Chevrolet Silverado 1500

nd says that the 02 sensor bank 1 sensor 1 needs to be replaced. Where is this sensor located please?

by in Houston, TX on September 03, 2012
3 answers 3 comments
ANSWER by on September 03, 2012
Drivers side front sensor. That is the answer to your question not your trouble code.
ANSWER by on September 03, 2012
code number never identifies a bad part just a failed system. get it checked to be sure. Roy
COMMENT by on September 03, 2012
trouble code says bank 1 running too lean
COMMENT by on September 03, 2012
Check for vacuum leak on left (drivers side) of engine. Is eng. running ok. Smooth idle?
COMMENT by on September 03, 2012
Running fine.
ANSWER by on September 03, 2012
agree with master tech only the circuit has issue not necess the sensor