Question about 2007 Dodge Ram 1500 Quad Cab Sport
It is probably the EGR valve itself. I would remove the valve and check the lines coming off of it to make sure it is not clogged. If that checks out ok then I would replace the EGR Valve and then clear the code with a scan tool.
Posted on Mar 25, 2011
P0406 is an EGR flow sensor code you may just have to replace the EGR valve
Posted on Jan 14, 2012
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Posted on Jan 02, 2017
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