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o2 sensor problems!!

754 views 0 replies 1 participant last post by  workinman91 
#1 ·
hello everyone, i have a 2000 silverado ext cab 5.3 4x4 auto and i replaced the bank 2 sensor 2 oxygen sensor because i had a few MIL codes, like " no activity" and " heater something" so i figured it needed to be replaced. so after replacing it and driving it the same codes came back on. i checked and everything seems to be connected right and no broken wires. so im not sure what to check next.. and just to make sure bank 2 sensor 2 is the post-cat on the passenger side right?
 
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