O2 Extenders - 2002 Liberty - Check engine light

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Originally Posted by mactheheeler

Have you had your codes read? If not go to autozone, they will do it for free.
After I had mine read the first time it said temp. sensing delay, the next time they were read it was fuel mixture was too lean.

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Use the key shuffle (on Dodge / Chrysler / Jeep vehicles) to get the codes. Start with the key out, then insert it and go 'Run' -> 'Off' -> 'Run' -> 'Off' -> 'Run' (don't hit the starter) within 5 seconds and the codes will appear in the odometer display.