Thread: P0401 and EVAP
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Old 03-31-2004, 02:10 PM   #15
ModMech
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Re: P0401 and EVAP

If all the monitors have been completed, than it should pass. One of the biggest reason for a fail is a recent code retrieval and clearing (or even a battery replacement) that dumps the KAM and monitors. That's whay I wrote (fail) because the monitors can take a week to complete if you don't drive often or far.
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