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Jeep Wrangler YJ
YJ General Discussion
Check engine codes 27 and 41
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<blockquote data-quote="DOWNS" data-source="post: 438458" data-attributes="member: 21038"><p>Well, 27 involves an injector not responding properly to commands that would explain your rough running if you have an injector not working. </p><p></p><p>41 is "Alternator field control circuit open or shorted." That might explain your chirp if your alternator is going bad internally. </p><p></p><p>41 is the only one of those 2 that will always illuminate the CEL. 27 may or may not.</p></blockquote><p></p>
[QUOTE="DOWNS, post: 438458, member: 21038"] Well, 27 involves an injector not responding properly to commands that would explain your rough running if you have an injector not working. 41 is "Alternator field control circuit open or shorted." That might explain your chirp if your alternator is going bad internally. 41 is the only one of those 2 that will always illuminate the CEL. 27 may or may not. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Check engine codes 27 and 41
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