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truck feels a lot slower with a/c on

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Old Sep 29, 2009 | 01:30 PM
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Default truck feels a lot slower with a/c on

when i turn my a/c on my truck feels like it looses about 1/2 of its power. it pretty much feels like its bone stock again. scott posted a little about this and said corey fixed it for him but doesnt know what he did. (link below)

can anyone tell me what needs to be changed so i can tell my tuner how to fix this for me? thanks

https://www.performancetrucks.net/fo...d.php?t=448866
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Old Sep 29, 2009 | 01:40 PM
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Old Sep 29, 2009 | 01:41 PM
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seriously, do you have EFI Live i can tell you the tables??
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Old Sep 29, 2009 | 01:53 PM
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Virgil tunes my truck with HP tuner
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Old Sep 29, 2009 | 01:55 PM
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Corey, explain?
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Old Sep 29, 2009 | 01:56 PM
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Originally Posted by BlackGMC
seriously, do you have EFI Live i can tell you the tables??
Post it up. I don't have any power loss w ac but I do have annoying compressor kick on the highway when timing is pulled
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Old Sep 29, 2009 | 02:01 PM
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Originally Posted by 454navyss
Virgil tunes my truck with HP tuner
Sorry i don't have HPtuners on my computers anymore, so i can't tell you where or what to modify...
Originally Posted by trever1t
Corey, explain?

Originally Posted by GMCtrk
Post it up. I don't have any power loss w ac but I do have annoying compressor kick on the highway when timing is pulled
Here you go fellow EFI Live guy!!


I disabled B4358 and B4359 one if for idle and the other i assume is driving also you can decrease the values in B4369. Below are stock values...

B4358/B4359



B4369
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Old Sep 29, 2009 | 03:35 PM
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i guess im just going to have to buy a new laptop and EFI live so i can start messing around with my truck whenever i want to. thanks anyway Corey
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Old Sep 29, 2009 | 03:38 PM
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Originally Posted by 454navyss
i guess im just going to have to buy a new laptop and EFI live so i can start messing around with my truck whenever i want to. thanks anyway Corey
YES another EFI live convert/newbie...

BTW, I hoped that helped
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Old Sep 29, 2009 | 03:41 PM
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Originally Posted by 454navyss
i guess im just going to have to buy a new laptop and EFI live so i can start messing around with my truck whenever i want to. thanks anyway Corey

Originally Posted by BlackGMC
YES another EFI live convert/newbie...

BTW, I hoped that helped
I picked up my EFIlive for $225 shipped hehe
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