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codes are P0 442 and 420
420 could be a bad cat. would have to confirmed witha diag.
442 is an evap code that needs a diag too.
you need a shop to confirm and give you a bid.
Q&A > Jeep > 2003 Jeep Liberty
Q&A > Jeep > 2002 Jeep Liberty
Q&A > Jeep > 2005 Jeep Liberty