Thread: Cat efficiency bank 1&2 and 02 Sensor 1 & 2 error codes
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Old 03-12-2009, 02:06 PM
koister2001 koister2001 is offline
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Join Date: Mar 2006
Location: San Jose, CA
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Crawl under your truck and you will see all four o2 sensors, two before and two after the catalytic converter. I searched the same DIY, but they are just too easy to locate.
Last edited by koister2001; 03-12-2009 at 04:39 PM.
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