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post #1 of 9 Old 05-15-2010, 08:09 AM Thread Starter
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P0401

(P0401 Exhaust Gas Recirculation (EGR) Flow Insufficient Detected)

Anyone know what causes this? This is why I got the Spartan so I could delete this code but would one day like to find a real fix. I do have a after market ext.
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post #2 of 9 Old 05-28-2010, 01:37 PM Thread Starter
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Found it, due to an coolant leak that I still cant find..
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post #3 of 9 Old 06-01-2010, 09:26 PM
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I just got the same code and I check for and I cant anything
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post #4 of 9 Old 06-03-2010, 08:27 AM Thread Starter
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I put my truck back to stock and the codes went away and the coolant is now fine. Are you running a Spartan?
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post #5 of 9 Old 06-03-2010, 06:35 PM
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Yeah I do. I barley 8000 miles with spartan.
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post #6 of 9 Old 06-03-2010, 07:35 PM Thread Starter
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I got about 6,000 miles with my spartan.
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post #7 of 9 Old 06-06-2010, 08:25 AM
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Ok so did you put everything back to stock like dpf delete and intake? or did you just load the stock file thru Spartan??
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post #8 of 9 Old 06-06-2010, 08:36 AM Thread Starter
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I put every thing back to stock for now. I updated my tuner and Mick sent me the new strategy tunes and I am running a stock plus 125hp tune with no problems. The only problem I ran accross was that the tuner no longer liked my stock tune any more. Mick sent me a new stock file and all seams well for now. THANKS MICK.... I will run it with the stock plus 125hp for a few more weeks to see if any codes pop up. If not I will be removing the dpf again.
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post #9 of 9 Old 06-08-2010, 08:28 PM
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Oh ok Ill try that THANKS
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