PO406 /check engine light on
Check engine light on. Replace DPFE, still came on. I found moisture on the REF leg of the DPFE and my truck almost cuts off at idle. Thanks
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You might want to check to make sure the EGR valve is not hanging open .
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Check engine light on
just replaced EGR valve, reset light, has not come back on yet, but did not help the idle.
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check engine light
Drove today for about 100 miles and then the light came back on. This code this time is PO401. Any suggestions anyone. This is a tough one.
Thanks
Originally Posted by ron barbrey
(Post 88025)
just replaced EGR valve, reset light, has not come back on yet, but did not help the idle.
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