Converting an HPTuners file over to EFILive? Or other solutions

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June 10th, 2013
sac811

Converting an HPTuners file over to EFILive? Or other solutions

1. Before I actually post the file (In case its against the rules or something), is anyone on here able to convert an hptuners file (from my friends truck), over to EFILive file for a starting place for my newly swapped 6.0 lq9 in place of the current 5.3?

2. If that isn't doable, would it be possible for him to upload that tune, from a 2004 dbw silverado ecu, into my 2002 dbc silverado ecu? And me just extract it from my own computer after that?

Any help or suggestions would be great.

Thank you

Jeremy
June 10th, 2013
IJ.

If it's not a HP Tuners Custom OS it's readable by EFI-Live.
June 10th, 2013
sac811

Quote:

Originally Posted by IJ.

If it's not a HP Tuners Custom OS it's readable by EFI-Live.

Just tried renaming file from .hpt to .tun or .ctz and it would not read with EFILive.

Didn't think it was a custom OS, but I don't know for sure.

Where do I go from there?
June 10th, 2013
IJ.

No you'll have to plug V2 into the car and suck it out to be able to save/read it, sorry should have said so.
(and only as long as it's not a COS)
June 10th, 2013
sac811

Quote:

Originally Posted by IJ.

No you'll have to plug V2 into the car and suck it out to be able to save/read it, sorry should have said so.
(and only as long as it's not a COS)

Ok cool

And it wont matter that the tune will be from an 04 drive by wire PCM file going into my 02 drive by cable PCM?
June 10th, 2013
IJ.

OS numbers need to match, can't see that working at all..
June 10th, 2013
darcy

Quote:

Originally Posted by sac811

And it wont matter that the tune will be from an 04 drive by wire PCM file going into my 02 drive by cable PCM?

Yes, it will matter. You can't stick the 1Mb file into a 512kB PCM.

There are a few ways you could go to see how his works in order to emulate it, you could:

1. Go read out his truck with your V2 then copy what you find into your OS
2. Download HP tuners demo and look a the file table by table and alter your file to the same
3. Post it up here and maybe a helpful member with both packages might convert it for you.

In any event, you will still have to manually compare each table for changes since you cant just flash a 1Mb OS into a 512kb PCM
Option 1 will atleast mean all the tables are labelled similarly between files to make copy-pasting quicker.
June 10th, 2013
sac811

Quote:

Originally Posted by darcy

Yes, it will matter. You can't stick the 1Mb file into a 512kB PCM.

There are a few ways you could go to see how his works in order to emulate it, you could:

1. Go read out his truck with your V2 then copy what you find into your OS
2. Download HP tuners demo and look a the file table by table and alter your file to the same
3. Post it up here and maybe a helpful member with both packages might convert it for you.

In any event, you will still have to manually compare each table for changes since you cant just flash a 1Mb OS into a 512kb PCM
Option 1 will atleast mean all the tables are labelled similarly between files to make copy-pasting quicker.

Guess I will just try the HPTuners demo method, because he no longer has the truck.

But for what its worth, the file size is the same from his 04 PCM as my 02 PCM 450-475kb
June 10th, 2013
ScarabEpic22

Quote:

Originally Posted by sac811

Guess I will just try the HPTuners demo method, because he no longer has the truck.

But for what its worth, the file size is the same from his 04 PCM as my 02 PCM 450-475kb

If it's a true 04 truck, it's a 1MB flash. Does that mean GM used all 1MB? No, but it also means you cant use it in a 512kb PCM.

Honestly, you're going to need a WBO2 to tune it correctly anyway, Id suggest buying one and using a stock LQ9 ala SSS/Escalade tune to start. Copy the VE, spark, displacement, injectors (if you swapped them), etc into your stock tune. Either AutoVE or Calc.VET it and have the VE/MAF tables dialed in pretty quickly.