Turned off DoD/AFM, better economy/power? - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Vortec 5.3L V8 Engine and Drivetrain > Engine Tunes/Mods

Engine Tunes/Mods Performance Engine Tuning/Engine Modifications

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  #1  
Old 05-31-2017, 08:05 PM
Horsehaulin Horsehaulin is offline
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2006 GMC Envoy Denali XL
Bordeaux Red Metallic 5.3L V8 4X4
Join Date: Jan 2016
Location: Fort Wayne, IN
Posts: 24
Turned off DoD/AFM, better economy/power?

DoD/AFM turned off via EFI Live but I am not as sharp on these as I am on Diesels, anyone able to help me squeeze a few MPG's and maybe some additional ponies out of this beauty?
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  #2  
Old 06-03-2017, 04:10 PM
Horsehaulin Horsehaulin is offline
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2006 GMC Envoy Denali XL
Bordeaux Red Metallic 5.3L V8 4X4
Join Date: Jan 2016
Location: Fort Wayne, IN
Posts: 24
Anyone able to help out here or did everyone move to the new site?
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  #3  
Old 06-03-2017, 04:23 PM
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EnvoyBoy2004 EnvoyBoy2004 is offline
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2004 GMC Envoy SLT
Graphite Metallic 4.2L I6 4X4
Join Date: Sep 2014
Location: NY
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Most of the original expert crew has moved to the new site.
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  #4  
Old 06-20-2017, 11:39 PM
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The Neens The Neens is offline
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2002 Chevy TrailBlazer LS
Light Pewter Metallic 4.2L I6 2WD
Join Date: May 2014
Location: Valencia, Ca
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Check with ScarabEpic22/ SE Performance...He did the tuning for my '02...
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EFI Live by SE Performance, Derale trans cooler by me, Kooks '06-'09 header
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  #5  
Old 03-07-2018, 11:50 PM
Supercharged111 Supercharged111 is offline
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2007 GMC Envoy Denali
Black 5.3L V8 4X4
Join Date: Apr 2016
Location: Colorado Springs, CO
Posts: 19
Don't expect much. You may be able to globally bump timing by about 2 degrees and you ought to definitely bring in total timing sooner. If you're willing to spring for premium then there's definitely more to be had. I've been to lazy to buy a license for mine, but I did datalog it last Fall and saw some potential. Not a ton, seems GM decided to not leave it all on the table here.
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