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Thread: "Check engine light" error codes po446, po442, po440????

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04-12-2009, 10:31 PM	#11 (permalink)
Kerrygarth New TN User Join Date: Mar 2008 Location: Maryland, USA Posts: 5 Gameroom cash: $1500 Thanks: 0 Thanked 0 Times in 0 Posts	Don't overfill and make sure gas cap is on tight Don't overfill with gas and make sure gas cap is on very tight at all times. I have an '01 Avalon and '03 Sienna, both with over 140K miles (great vehicles!) but they both will through up PO441, 442, 446 error codes along with VSC disabled and check engine idiot lights if the gas cap is loose. Disconnecting battery will reset (and delete) all error codes and clear the check engine light, VSC, etc. idiot lights on the dash.

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