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My name is ***** *****, im currently working on a 08 duramax…

Customer Question
Hello my name is...

Hello my name is ***** *****, im currently working on a 08 duramax with a p0401 the egr valve has been cleaned and replaced the egr actuator motor. the code is still present and engine will eventually go into derate mode

Mechanic's Assistant: Thanks. Can you give me any more details about your issue?

The only two DTc's that the truck currently has is P0401 insufficient EGR flow detected and P003A turbo boost control position not learned

Submitted: 2 years ago.Category: Chevy
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Customer reply replied 2 years ago
anyone there?
Answered in 11 minutes by:
2/19/2016
Chevy Mechanic: Daniel Wilson,
 replied 2 years ago
Daniel Wilson
Category: Chevy
Satisfied Customers: 6,900
Experience: Owner at DJ Wilson
Verified

Hi my name is***** will be glad to help. Clean out all the soot and carbon deposits in all the ports and intake passages. click this link for FYI on this fault. If the fault still exists then replace the EGR valve.

https://www.youtube.com/watch?v=SLyDwuBmY_8

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