Need help and ideas for programming my 2004 GMC 4x4

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Hotrod2004
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Need help and ideas for programming my 2004 GMC 4x4

Post by Hotrod2004 »

I have a 2004 GMC seirra 1500 ext cab 4x4. it has a gibson super truck exhaust and a k&n intake with throttle body spacer. its runnig 285-70-17s with the 4.10to1 gears and has the 5.3 litre in it. I put in the normal tune with the tire change but its going not as i wanted. any help for programing it will help me get the tune i want without hurting it. thank you

the programmer i have is the U7193
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mikel
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RE: Need help and ideas for programming my 2004 GMC 4x4

Post by mikel »

What do you mean it is going not as you wanted?
Mike Litsch
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Hotrod2004
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RE: Need help and ideas for programming my 2004 GMC 4x4

Post by Hotrod2004 »

I want the shifting to have more bite and more accelaration. the wide open is fine at cruising but from taking off the truck doesn't want to pwer up as quick.
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mikel
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RE: Need help and ideas for programming my 2004 GMC 4x4

Post by mikel »

Try disabling the first two parameters listed under torque management.

Thanks
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST

[email protected]
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Hotrod2004
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RE: Need help and ideas for programming my 2004 GMC 4x4

Post by Hotrod2004 »

Thanks so much. the truck takes off like crazy now even for the tire size. Any other things I could try to help the engine run stronger?
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Hotrod2004
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RE: Need help and ideas for programming my 2004 GMC 4x4

Post by Hotrod2004 »

will doing the injector slope help me at all?
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06MonteSS
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RE: Need help and ideas for programming my 2004 GMC 4x4

Post by 06MonteSS »

yes... it will give you improved throttle response, quicker acceleration, and harder/stronger pulls...
06MonteSS / DiabLew Tune
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Hotrod2004
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RE: Need help and ideas for programming my 2004 GMC 4x4

Post by Hotrod2004 »

after trying to figure out what every one has been talking about the injector issue do I even need to mess with the EP at all. I did negative 2 % just to feel if it helped. I could feel a differance but should I run it normal and read the diagnostics to set the slope that way? thanks
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06MonteSS
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RE: Need help and ideas for programming my 2004 GMC 4x4

Post by 06MonteSS »

yes, you need to monitor the long term fuel trims for bank 1 and bank 2 and see what the average value is... then you'd make injector slope adjustments based on that average value number...

i.e. - if your average ltft's are at 2.xx, you would adjust your injector slope to -2%...

if they were at -2.xx, you would adjust your injector slope to +2%...
06MonteSS / DiabLew Tune
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2014 Camaro SS - 2SS, RS pkg., short-throw shifter, NPP perf. exhaust, BMR strut-tower brace, Cold Air Inductions cold air intake
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com -- www.diablocustomtuning.net
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