Hex Editor Forum

[Caleditor]

You should have a Hex Editor Forum

[Caleditor]

I did this up a few months back on another forum, but it got lost on a server upgrade. I hope can remember everything correctly. jimmyblue may like this
These are the complete fuel segments for 2001 F-Body and a 2001 Express Van. As you can see they are not even close to matching

[Caleditor]

This is just the section that applies to the Fuel Tank.
Everything after this point will have effect on other functions. You can see that the rest of the segment above has a lot of differences
I outlined the differences in the fuel tank portion

[Caleditor]

This is the beginning of the segment and when I changed this it had no effect on the fuel gauge operation.

[Caleditor]

This is the end of the fuel tank portion of the fuel segment. This is the area that controls the fuel gauge

[Caleditor]

This is what I came up with for a customer. He has a 96 Camaro with a 98 IPC in it, a 5.3L, a custom fuel cell and a 0411. This is what I ended up with

[Caleditor]

This is the Fuel Sender Input to the PCM for a 98 F-Body's Calibration

[Caleditor]

This is a 2002 Van Fuel Sender Input to the PCM
This would be the table that would need to be inverted or flipped if you didn't use the Camaro Segment


This is a 2002 F-Body Fuel Sender Input to the PCM.

[Caleditor]

These are the 2 setting that need to be changed to get the 98 Fuel Gauge to work any of the newer PCM's
2002 Camaro OE

2002 Camaro with Van Settings
I will tell you that this is not the 98 Fuel Gauge Hz setting I use

[Caleditor]

Dave I hope you have time to look this over. I hope it sheds some light on Hex Editing.

[Six_Shooter]

You should have a Hex Editor Forum

Why?

If something about hex, or editing in hex comes up, it's because it's relevant to a particular subject that already has an existing forum.

Even general Hex editing already has a forum, "Other EFI systems and related topics", Alternatively if it's more of a tutorial, or "how-to" as it were, there is the "Fuel Injection Writeups Articles and How to New and Old" forum as well.

[EagleMark]

Seems we have more hex/code threads in GearHead section?

Unless it's specific to a thread...

[Caleditor]

Why?

If something about hex, or editing in hex comes up, it's because it's relevant to a particular subject that already has an existing forum.

Even general Hex editing already has a forum, "Other EFI systems and related topics", Alternatively if it's more of a tutorial, or "how-to" as it were, there is the "Fuel Injection Writeups Articles and How to New and Old" forum as well.

You cannot tune all 10,000 parameters in TC

[Caleditor]

This is a 2001 calibration with the information stored at 4000


This is it in Hex and the Green part needs to be in place also


This is the Engine Segment and the Checksum


This is it in Hex


This is also a 2001 calibration. The ID info is at 6000 in this cal


This is it in hex. As you can see the part after is not the same as the 4000

[1project2many]

You cannot tune all 10,000 parameters in TC

True, but you cannot have a separate drawer for every tool in the toolbox, either. Let's see how much interest this thread develops before making changes.

It's clear that the code segments are different but specifically, what code is different? How does swapping a segment "throw everything off"? I know enough about coding to know swapping segments can work. If it doesn't, let's have some details. We can see an LS1 is different from a 292 six cylinder, too, yet we can often manage to figure out how to swap the LS1 into an older rig successfully.