Question about 1991 Jeep Wrangler

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How do i clear the stored codes on my 91 Jeep YJ with 4.0

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A few ways 1. unhook battery for a bit then reconnect. 2. turn key on and off three times, on third time leave on and wait for codes to finish flashing on dash 3. last but not least, and probably most effective, go down to local parts store and borrow code reader that you will also be able to clear codes with. And as always, if they come back on , it aint' fixed yet.

Posted on Sep 12, 2009

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