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#2
02-20-2010, 11:48 PM
Hummer Authority
Join Date: Oct 2003
Posts: 1,118
Re: showing a DTC P0446
Just get gas ? Might check that gas cap is tight.
Condition for setting the DTC
The fuel tank pressure sensor is less than -10 inches H2O
The condition is present for as long as 30 seconds.
Said it may take three times of starting the truck for it to go away after the cap is tightened.
Ed
Last edited by Easy Ed : 02-20-2010 at 11:51 PM.
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