Thread: Cel P0453
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Old 06-04-2010, 05:39 AM   #5
JFP in PA
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Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,261
Unfortunately, I’d be willing to bet that a new cap is not going to cure this problem. P0453 is the code for an excessively high tank pressure; usually bad caps cause the opposite problem. More likely, you have either a bad pressure sensor or vent valve in your EVAP system……….
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