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Discussion Starter · #1 ·
I have 03 6.0L , i have a code of egr low voltage. looked at code and said low or open to dpf sensor. what is te dpf sensor and were is it? and how do i test it?
 

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Discussion Starter · #3 ·
406 I meant 408 and 4

I am getting two codes 408 circuit low b. and a egr position something low circuit voltage.
 

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Take the trk. in & see if its a candidate for the new revised egr valve. They are prone to set this code & sometimes sets a high or low voltage code for the egr sticking closed or open & will affect the upper sensor. It usually will also set a code for egr restriction.
 
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