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Mustang Forums
2011-2014 Mustangs
2011-2014 Mustang Talk
Failed inspection on "system not ready". Why?
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<blockquote data-quote="walked_u_hard" data-source="post: 13143734" data-attributes="member: 137690"><p>There are chronometric values that need to be changed, the 420 and 430 codes need to be enabled as well. This will change the O2 stuff to unsupported, and will allow the car to pass, no CEL will illuminate in regards to your rear O2s.</p><p></p><p>As for the random lean code, the sensor may be going bad, especially if only on one bank.</p></blockquote><p></p>
[QUOTE="walked_u_hard, post: 13143734, member: 137690"] There are chronometric values that need to be changed, the 420 and 430 codes need to be enabled as well. This will change the O2 stuff to unsupported, and will allow the car to pass, no CEL will illuminate in regards to your rear O2s. As for the random lean code, the sensor may be going bad, especially if only on one bank. [/QUOTE]
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2011-2014 Mustangs
2011-2014 Mustang Talk
Failed inspection on "system not ready". Why?
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