code po157 - JeepForum.com

 
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post #1 of 4 Old 05-06-2010, 10:52 PM Thread Starter
bigwyrm
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2003 TJ Wrangler 
 
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code po157

I ran a code reader and it came up with po157, any ideas what it is?

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post #2 of 4 Old 05-06-2010, 10:54 PM
USAFRecon
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O2 sensor input voltage below normal operating range.

Lower bank 02 sensor needs replaced

http://www.jeepforum.com/forum/f9/tj-forum-faq-615132/

http://www.jeepforum.com/forum/f9/fa...-codes-778086/
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post #3 of 4 Old 05-06-2010, 10:55 PM
Buffalo99
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P0157 (M) 2/2 O2 Sensor Shorted To Ground Oxygen sensor input voltage maintained below normal operating range. I'm pretty sure that's indicating an error for the downstream sensor on bank 2 (cylinders 4-6). But, before you take my word for it... I'd double check just to make sure.

Hope that helps.
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post #4 of 4 Old 05-07-2010, 10:59 PM Thread Starter
bigwyrm
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thanks guys!

I appreciate it!
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