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Go Back   Dodge Cummins Diesel Forum > 07.5 - 09 6.7 Liter Cummins > 07.5 - 09 3rd Gen 6.7L Performance Parts Discussion
07.5 - 09 3rd Gen 6.7L Performance Parts Discussion Discussion of Performance Parts For the 6.7L Trucks...NO ADVERTISING

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Old 01-29-2009, 11:00 AM   #1 (permalink)
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clearing codes on egr unplugging

i just want to get this straight, did I read on here a while ago that if you have a unti to clear codes, you dont want to clear the code of the EGR being unplugged because it will make it act funny? so should i plug it back in until i get the delete, or was I just imaganing I read that.
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Old 01-29-2009, 11:09 AM   #2 (permalink)
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deffinatly. when you unplug the egr you are in essence stoping the servo from opening and closing. so when you start the truck the ecm looks for the servo motion and the temp increase. when it does not see this that is where you get your check engine light from. then when your light comes on the truck look's for a fix. it will try to use old files from the computer to correct the problem this often causes Regen.... now if you have a dpf delete there is nothing to catch the 4th injection cycle then it comes out the back of the truck in a big white haze fogging out the whole neighborhood ..now when the truck does a regen it is looking for the catilist temp to raise quickly to burn the soot out of the dpf .. but since there is no dpf the truck does not see the temp it wants so it will slip into limp mode..these are all possibilitys of unplugging your egr. even when you do unplug your egr it does not stop completely the soot for recirculating into the truck. it stops most but not all. now if you clear codes you have much less chance of this happening because the truck will think the dpf is broken so it will not want to do any regen...but still possible.
if i can help you get some code free electronics let me know

i hope that helped a bit
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Old 01-29-2009, 11:18 AM   #3 (permalink)
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egr gone, unplugged, codes cleared, runs like a wet dream past 90,000 miles
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Old 01-29-2009, 03:23 PM   #4 (permalink)
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So howdy what your saying is DO clear the egr code on startup? I just want to make sure cause that's what I thought all along as well but everyone else said my truck wouldn't run properly.
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Old 01-29-2009, 03:34 PM   #5 (permalink)
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So if I unplug my EGR do I need to let my Edge clear the codes everytime I start my truck?
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Old 01-29-2009, 03:43 PM   #6 (permalink)
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Originally Posted by 6.7megamax View Post
So howdy what your saying is DO clear the egr code on startup? I just want to make sure cause that's what I thought all along as well but everyone else said my truck wouldn't run properly.
yes sir clear the code
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Old 01-29-2009, 03:45 PM   #7 (permalink)
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How much does an EGR delete cost?
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Old 01-29-2009, 03:49 PM   #8 (permalink)
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egr delete and the electronics is 975
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Old 01-29-2009, 07:59 PM   #9 (permalink)
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my truck doesnt run right when i clear the code... neither did a few other ppls

runs normal when i do NOT clear the code, just give it a try and see how your truck reacts
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Old 01-29-2009, 08:16 PM   #10 (permalink)
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my truck doesnt run right when i clear the code... neither did a few other ppls

runs normal when i do NOT clear the code, just give it a try and see how your truck reacts
Do you know what flash you're on? I know at least one person AX who mentioned that his truck runs different with the codes cleared.

I'm on AU and can't detect a difference.
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Old 01-29-2009, 08:19 PM   #11 (permalink)
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i BELIEVE i have AV flash... they never updated the sticker, it stilll says AU, but i had it flashed 1 time since then, i MAY have the AX , most likely AV or AX
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Old 01-29-2009, 08:38 PM   #12 (permalink)
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egr delete and the electronics is 975
How much for just the electronics? Mine runs fine and the only time i delete the codes is when the overhead starts going off and won't shutup but that only happens about every tank and a half of fuel.
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