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Old Nov 5, 2013 | 04:01 PM
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P0401

I just bought a 2003 F250 from a used dealer. Unfortunately the service engine light keeps popping on and putting out the code P0401, I have replaced the EGR, cleaned the inside, and cleared the code. However it continues to keep popping up and then it will turn off after a couple of days. I mostly drive in the city and the code generally only pops on when I drive on the highway. I have also noticed a lack or delay of power, when I really hit it hard, I think its because the computer is keeping the egr valve open. Any ideas on what it could be?
 
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Old Nov 5, 2013 | 04:22 PM
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From: Needville, TX
I would try a fuel pressure test first.
 
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Old Nov 5, 2013 | 05:35 PM
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What motor are we dealing with here? Gas/Diesel?
 
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Old Nov 5, 2013 | 05:58 PM
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Diesel 6.0
 
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