code 0401

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May 23, 2010 | 07:14 PM

krommag

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Junior User

Joined: Apr 2009

Posts: 55

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code 0401

i got this code twice on my 04 psd with 73k, i change the oil and air filter on friday it only happen when I'm on the highway and let off the pedal to slow down,

thanks
K

May 23, 2010 | 07:39 PM

bismic

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Joined: Nov 2003

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If it is a "P" code then it is likely to be a sticking EGR valve or bad EGR valve.

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