Question on return,returnless fuel system

Reply Subscribe

Thread Tools

Search this Thread

Aug 5, 2006 | 07:14 PM

#11

Mangled03gmc

Thread Starter

Baltimore Whore

iTrader: (95)

Joined: Apr 2004

Posts: 16,820

Likes: 2

From: In a van DOWN BY THE RIVER

Quote:

Originally Posted by DLH2006

Yep, You will need to get a new PCM because i am almost certian that the PCM off the 05 cannot be used on anything under 05. Sorry for not informing you of this on my last post.

So if I get a pre 05 6.0 computer it should work, the 05 comp I have now is poo...

Aug 5, 2006 | 09:16 PM

#12

DrX

TECH Addict

iTrader: (7)

Joined: Jun 2005

Posts: 2,703

Likes: 6

From: Canada

Quote:

Originally Posted by mangledgmc03

So if I get a pre 05 6.0 computer it should work, the 05 comp I have now is poo...

You already have an 03 6.0 PCM. Same as the 4.8, 5.3. Either of your PCMs will work. They will just have to be tuned(programmed) for the 6.0.

Aug 6, 2006 | 01:57 AM

#13

Mangled03gmc

Thread Starter

Baltimore Whore

iTrader: (95)

Joined: Apr 2004

Posts: 16,820

Likes: 2

From: In a van DOWN BY THE RIVER

Quote:

Originally Posted by DrX

You already have an 03 6.0 PCM. Same as the 4.8, 5.3. Either of your PCMs will work. They will just have to be tuned(programmed) for the 6.0.

Yes I have an 03 pcm but it is a 4.8 pcm. The only reason I got the pcm with the 6.0 is because I thought the timing and fuel tables might be different, with me putting this cam in that the 6.0 tune would be better suited for now untill I can get a tune done. So your saying that there isn't a difference between the 4.8 an 6.0 tune.. THanks JOHN

Aug 7, 2006 | 06:32 PM

#14

DrX

TECH Addict

iTrader: (7)

Joined: Jun 2005

Posts: 2,703

Likes: 6

From: Canada

Quote:

Originally Posted by mangledgmc03

I meant that either PCM will work once tuned as long as the connectors are the same. Same PCM(hardware) for the 4.8, 5.3, 6.0, just different tunes(software). The PCM that came with the 6.0 will have the closest tune as is, other than your injector flow rate table(due to the returnless fuel system). Other tables will have to be changed though to get the most out of the cam.