Thread: check engine code PO442
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Old 03-19-2018, 07:12 PM   #1
floridasun4me
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check engine code PO442
my sienna is showing the code PO442. i changed the gas cap with a cheaper priced one and the light came back on. would it be because i am using a cheaper version (6-10$) than an original factory ( @36$) gas cap?
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