LMM: how to gwt reduced engine power message to go away

DIESELMAFIAPER.LB7

<----new hotness
Jan 17, 2010
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idaho
shop.dieselmafiaperformance.com
Cool thanka I knew it was simple just didn't know which table also have a question with his maf table is it possible to switch a frequency base maf to voltage base?
Let me rephrase that can it be done without the truck freaking out about it I have tried on a non twinned truck an it always throws a maf performance code
 
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DIESELMAFIAPER.LB7

<----new hotness
Jan 17, 2010
5,163
12
38
idaho
shop.dieselmafiaperformance.com
No Brandons truck has been a pain in the ass ever since we tried redueing the tune if we could read damn 06-up trucks wouldn't have had a issues but after GM reflashed back to stock I tried playing with the maf shit to make smoke an run similar to before an it gets pissed off throws a code puts truck in limp mode. He's been cool bout the whole thing bit I just what the thing running like he wants again
 

DuramaxPowered

Pushing my luck....
Jan 27, 2008
791
0
0
41
Monroe, MI
I had this same problem after I built the twins on my truck, after a few seconds at WOT the "REDUCED ENGINE POWER" message comes up on the DIC, but no DTC would set.
 

Kappa9012

MAN.... I Broke it again.
Aug 5, 2008
694
0
16
Peoria Il
same issue on my truck, It's due to the MAF scaling, but I don't have the maf map for an lmm in my map list in EFI, so I'm not real sure how to rescale it. I max out at 76.3lbs right away and the dtc sets after it see's the actual vs desired off for 2 seconds.
 

Harbin_22

Active member
Dec 4, 2010
3,858
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Southern Indiana
There are tables for that. They C08... Somethin like that. They are the amount of time before dtc sets. The scaling is there too but not sure of the number right now.
 

LBZrcks

.........
Jun 2, 2007
5,297
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SoCal
No Brandons truck has been a pain in the ass ever since we tried redueing the tune if we could read damn 06-up trucks wouldn't have had a issues but after GM reflashed back to stock I tried playing with the maf shit to make smoke an run similar to before an it gets pissed off throws a code puts truck in limp mode. He's been cool bout the whole thing bit I just what the thing running like he wants again

Try adjusting the mixture tables? There was an LMM with twins that wouldn't fuel hard at all, I adjusted the Lambda and it started fueling harder.