Ok Ok 6.0 stock pcm ??? for pcm guys Help
Nov 13, 2007 | 04:04 PM
#1
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Joined: Apr 2004
Posts: 16,820
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From: In a van DOWN BY THE RIVER
Ok Ok 6.0 stock pcm ??? for pcm guys Help
Well after a long road, I am finially going to put this damn 6.0 in the truck on my vacation in december I freaking hope. I have asked a ??? like this awhile back and but didn't get a solid answer. I have a 05 6.0 with the pcm. In 05 the trucks were returnless fuel sys. I have a 03 with a return fuel sys. Will the 05 pcm work on my 03 or will it need a reflash, for the fuel system. I will have to get a reflash eventually for the cam and mods, I know this. Can this work untill I get a new tune. Can I have the 05 pcm tuned to work with a return style fuel system???Thanks for any helpfull info this.
JOHN
JOHN
Last edited by Mangled03gmc; Nov 13, 2007 at 08:08 PM.
Nov 13, 2007 | 04:17 PM
#2
Well after a long road, I am finially going to put this damn 6.0 in the truck on my vacation in december I freaking hope. I have asked a ??? like this awhile back and but didn't get a solid answer. I have a 05 6.0 with the pcm. In 05 the trucks were returnless fuel sys. I have a 03 with a return fuel sys. Will the 05 pcm work on my 03 or will it need a reflash, for the fuel system. I will have to get a reflash eventually for the cam and mods, I know this. Can this work untill I get a new tune. Thanks for any helpfull info this.
JOHN
JOHN
If you can make a trip down to alexandria, I'll flash it with a stock tune for you.
Nov 14, 2007 | 02:12 PM
#7
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Joined: Apr 2004
Posts: 16,820
Likes: 2
From: In a van DOWN BY THE RIVER
Easy man. Thank you for ya response. I just wanted more insite to it thats all. Since you wasn't sure about the tach mod working.
THUNDER550
Isnt the 4.8 pcm, different as far as fueling tables exc then the 6.0 pcm. If they are then wouldn't a cammed 6.0 run really bad, all I have on the 4.8 tune is the HYPERJUNK. I was wanting to know if I could use a returnless fuel system pcm on a truck with a return system. I know that a 6.0 pcm will not run that great on a cammed 6.0, but since the 6.0 pcm is for a (returnless fuel sys) will it really run bad I am keeping the return system on the truck.. thanks
John
THUNDER550
Isnt the 4.8 pcm, different as far as fueling tables exc then the 6.0 pcm. If they are then wouldn't a cammed 6.0 run really bad, all I have on the 4.8 tune is the HYPERJUNK. I was wanting to know if I could use a returnless fuel system pcm on a truck with a return system. I know that a 6.0 pcm will not run that great on a cammed 6.0, but since the 6.0 pcm is for a (returnless fuel sys) will it really run bad I am keeping the return system on the truck.. thanks
John
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Nov 14, 2007 | 02:18 PM
#8
Easy man. Thank you for ya response. I just wanted more insite to it thats all. Since you wasn't sure about the tach mod working.
THUNDER550
Isnt the 4.8 pcm, different as far as fueling tables exc then the 6.0. If they are then wouldn't a cammed 6.0 run really bad, all I have on the 4.8 tune is the HYPERJUNK. I was wanting to know if I could use a returnless fuel system pcm on a truck with a return system. I know that a 6.0 pcm will not run that great on a cammed 6.0, but since the 6.0 pcm is for a 05(returnless fuel), I am keeping the return system on the truck, if it will work.. thanks
John
THUNDER550
Isnt the 4.8 pcm, different as far as fueling tables exc then the 6.0. If they are then wouldn't a cammed 6.0 run really bad, all I have on the 4.8 tune is the HYPERJUNK. I was wanting to know if I could use a returnless fuel system pcm on a truck with a return system. I know that a 6.0 pcm will not run that great on a cammed 6.0, but since the 6.0 pcm is for a 05(returnless fuel), I am keeping the return system on the truck, if it will work.. thanks
John
As far as your 4.8PCM goes, it will be fine in steady state, but in transient fueling conditions, it may spike lean momentarily. Depending on how big your cam is, both PCMs might run equally badly.
Justin
Nov 14, 2007 | 02:26 PM
#10
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Joined: Apr 2004
Posts: 16,820
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From: In a van DOWN BY THE RIVER
It's the TAC (Throttle Actuator Control) Module that might have issues, but I don't think anybody here will know with any certainty if it will work or not.
As far as your 4.8PCM goes, it will be fine in steady state, but in transient fueling conditions, it may spike lean momentarily. Depending on how big your cam is, both PCMs might run equally badly.
Justin
As far as your 4.8PCM goes, it will be fine in steady state, but in transient fueling conditions, it may spike lean momentarily. Depending on how big your cam is, both PCMs might run equally badly.
Justin
Thanks JOHN