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Discussion Starter · #1 ·
got CEL-P0140 Bank 1 Sensor 2....I assume sensor 2 is the rear o2 sensor?<p>I was able to clear it for a day by disconnecting the battery but it came back.<p>Thanks
 

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Re: o2 sensors- sensor 2 the rear one? (hiwinds)

Yes, the one on the cat. Any mods? Checked the cable for damage?<p>Tom.<br>
 

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Re: o2 sensors- sensor 2 the rear one? (tmtalpey)

Thanks! I'm changing the oil this week...so when I have it on the lift I'll check the cable. My buddy has a shop (Lexus/Toyota) so I was at least able to pull a generic code with his scanner.<p>I have an EST cat-back (many years), a Bell FMIC (~5k miles+) and a drop in K&N. It is lowered with Eibachs so I was also thinking maybe something hit it....I only have 52k miles.<p>I was thinking in my head this is a great excuse for why I need the IPD software! <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/biggrin.gif" BORDER="0"> <p>Thanks
 

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Re: o2 sensors- sensor 2 the rear one? (hiwinds)

None of those mods should cause this problem. And tuning the engine won't, either. It is probably a damaged cable/connector, an aged/failed sensor, or ... a bad cat. If you don't see anything obvious, take it in.<p>Tom.
 
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