anybodys lmm get a ck eng light and clean exhaust filter all the time?

[dmaxx3500]

i think i might have found a fix,last week it would do this every day,i just tryed a small free fix and today after driving 700 miles and 2 tanks of fuel,fully loaded with a 12k trailer,now no service message or ck eng light,,i need 5 people to PM me to try this, ,but,

1.your truck must be stock,
2.must still have dpf hooked up,
3. no power adders
4.you need to keep track of your fuel milage and if the truck runs better
5.this only takes 5 mins,and your truck can be returned to stock easy
6.this can't void your warrenty
7.you can't tell anybody what your doing

i'm planing to give this out for free,but i need to see if it really works,like i think it does first

the 2nd thing i'm going to do is add power,but i need this first
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[killerbee]

The problem is with early LMM's, poor regeneration effectiveness, especially during low throttle/idle frequency. The fix is a new GM flash, which addresses several tuned factors that restores the correct combination of oxygen and EGT heat during regeneration.

 

[dmaxx3500]

it had that done last year,it didn't make a difference

 

[HemisAreSlow]

my lmm used to do that all the time...so i fixed it....the dpf is in my basment