i have to codes in my jeep on 2003 Jeep Liberty

codes are P0 442 and 420

by in Lansing, IL on June 10, 2011
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1 answer
ANSWER by , June 10, 2011
2 issues. 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. Roy