https://dev.z31library.com/index.php?action=history&feed=atom&title=Forums%2FZ31P%2Fz31-repairs-forums_engine-mechanical%2F1987_ignition_timing_problems 2026-08-15T19:08:48Z Revision history for this page on the wiki MediaWiki 1.43.8 https://dev.z31library.com/index.php?title=Forums/Z31P/z31-repairs-forums_engine-mechanical/1987_ignition_timing_problems&diff=6089&oldid=prev 2026-05-15T05:17:12Z

<p>Forum archive import (z31performance)</p> <p><b>New page</b></p><div>{{ForumImport<br /> |op_user=bdwalter30<br /> |op_date=2016-06-18 20:43:10<br /> |post_count=1<br /> |archive_url=/Z31performance_archive/forum/z31-repairs-forums/engine-mechanical/531179-1987-ignition-timing-problems.html<br /> }}<br /> <br /> &#039;&#039;&#039;bdwalter30:&#039;&#039;&#039; &lt;small&gt;(2016-06-18 20:43:10)&lt;/small&gt;<br /> <br /> I am having very bad ignition timing issues on my 87 z31 with an na2t swap. The car is running extremely rough if it even starts. And if I check the ignition timing and set it to 20 then rev it, the ignition timing will retard. Then after sitting for a little I will check it again at idle and now it&#039;s at 10. It will jump from anywhere between 0 and 50. It&#039;s really bad. I&#039;ve already tried the distributor out of my 86 and that didn&#039;t fix the issue. Any ideas on what could be causing this? Bad ground somewhere maybe?</div>

z31p_Bdwalter30