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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“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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