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P0140 O2 sensor code

20871 Views 7 Replies 4 Participants Last post by  Leyt5
today my truck cut the check engine light on and when i checked it was this code. it says no circuit activity and is detected on bank 1 sensor 2, which one is that? trucks got 4 like what im assuming is normal, before and after on both sides
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Yeah...just expect shitty mpg
1 - 2 of 8 Posts
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