</font><blockquote><font size="1" face="Verdana, Arial">quote:</font><hr /><font size="2" face="Verdana, Arial">Originally posted by Quan:
<strong>self diagnostic?? how do you run it?</strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">With the key off, quickly turn the key on (without starting it)-off-on-off-on. The check engine light should then blink out any error codes stored in the computer. You can either look up the codes in a repair manual or post them here and I or someone else can look it up.
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92 Canyon Blue Wrangler YJ 4.0L - with some fun goodies