2002 chevy malibu code p0452?

jbm100564

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The car would not start and the owner ran the battery dead trying to start the car. I put a loaner battery on the car and figured out the fuel pump was bad. Changed the fuel pump and car cranked right up.

24 hours later, the car runs fine, but it is throwing a P0452 code. I think it is an evap code refering to fuel tank pressure. I don't know if it was throwing the code prior to changing the pump because the battery was dead.

Did I miss something when I installed the pump?
 
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