Join Date: May 2013
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EGR Throttle position alert and P0401 code
2004 6.0 with 163k, stock as far as I know, I'm second owner as of May, 2013. DashBoss monitor connected a couple weeks ago, no DTC's found. Yesterday an "EGR Throttle Position Alert" with values 80,000 to 114,600 showed up. (don't know why I programmed in that parameter to check, don't have much of an idea what it does, was just getting familiar with DashBoss a few days before this started). CEL came on and DashBoss found DTC P0401. Truck ran about the same, runs rough for 4-5 miles then seems to run OK, no white/black smoke at startup or when running warm.
What I have done in last week before this started:
Replaced fuel filters. Check air filter-good. Cleaned EGR-moderate soot-3 days before code appeared. Put in a new radio without blowing any fuses. Changed oil to T6/AR9100 additive, placed rags around filter housing to keep tidy-code came on with first start up after oil change.
Checked wires around EGR valve, all seem secure. According to DashBoss: FICM 48-49.5 when running (can't check immediately at start because of DashBoss bootup), battery 13.2-13.7 within a couple minutes after start, turbo boost rises and falls as I think it should. EOT/ECT 4-8.
DashBoss was able to clear the code and CEL went off. Code came back 15 miles later. Cleared it again, thought I should get some advice about what to do next.
I live in Salt Lake City, yearly emissions check.
Just filled up the tank after 357 miles of ownership, hand calc 15.65mpg, seems pretty reasonable for commute 10 miles, 50/50 freeway/urban with one good 3 mile freeway hill. Thanks, Paul
2004 F350 6.0, 5R100, SRW, 3.73LS, CCSB, XLT, 163k, second owner as of May 5, 2013: stock except new Clarion CX501 radio and DashBoss/Ipad monitor as my first mods.
End of July, 2013: now has all new fluids/filters, Rotella Ultra ELC, T6, AR9100, blue spring, DashBoss EGT and Fuel Pressure sensors in, not yet wired. Delta at 65mph 8, 70mph 10, running on Gold.