P0401

**Coffaro** · #1 (**permalink**) 05-15-2010, 07:09 AM

(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.

**Coffaro** · #2 (**permalink**) 05-28-2010, 12:37 PM

Found it, due to an coolant leak that I still cant find..

6.4twins · #3 (**permalink**) 06-01-2010, 08:26 PM

I just got the same code and I check for and I cant anything

**Coffaro** · #4 (**permalink**) 06-03-2010, 07:27 AM

I put my truck back to stock and the codes went away and the coolant is now fine. Are you running a Spartan?

6.4twins · #5 (**permalink**) 06-03-2010, 05:35 PM

Yeah I do. I barley 8000 miles with spartan.

**Coffaro** · #6 (**permalink**) 06-03-2010, 06:35 PM

I got about 6,000 miles with my spartan.

6.4twins · #7 (**permalink**) 06-06-2010, 07:25 AM

Ok so did you put everything back to stock like dpf delete and intake? or did you just load the stock file thru Spartan??

**Coffaro** · #8 (**permalink**) 06-06-2010, 07:36 AM

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.

6.4twins · #9 (**permalink**) 06-08-2010, 07:28 PM

Oh ok Ill try that THANKS

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