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Old 05-03-2012, 01:48 PM   #1
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check engine/ engine knocking 92yj

I have two quick questions... Check engine light codes tell me 12 which I believe is for battery.. New battery on, should I get new wires maybe, they're a little old. And second, engine knocks not loudly or anything, normal? 1992 yj 4cyl

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Old 05-03-2012, 02:15 PM   #2
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Code 12 just means your battery has been disconnected recently.

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Old 05-03-2012, 02:59 PM   #3
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Its coming on while driving sometimes
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