https://dev.z31library.com/index.php?action=history&feed=atom&title=Forums%2FZ31P%2Fz31-performance-upgrade-forums_engine-management%2Fdiagnosing_O2_sensor 2026-08-15T11:06:46Z Revision history for this page on the wiki MediaWiki 1.43.8 https://dev.z31library.com/index.php?title=Forums/Z31P/z31-performance-upgrade-forums_engine-management/diagnosing_O2_sensor&diff=4914&oldid=prev 2026-05-15T05:10:19Z

<p>Forum archive import (z31performance)</p> <p><b>New page</b></p><div>{{ForumImport<br /> |op_user=Gesler300<br /> |op_date=2013-09-06 14:23:20<br /> |post_count=1<br /> |archive_url=/Z31performance_archive/forum/z31-performance-upgrade-forums/engine-management/22527-diagnosing-o2-sensor.html<br /> }}<br /> <br /> &#039;&#039;&#039;Gesler300:&#039;&#039;&#039; &lt;small&gt;(2013-09-06 14:23:20)&lt;/small&gt;<br /> <br /> Fsm says to connect pin 115 to ground but their is no pin 115 in conector so I looked at the efi harnes diagram and pin 115 is Xed out so how do I diag the harnes.<br /> <br /> Please help Thanks</div>

z31p_Gesler300