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
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Hex%20Work/02%20PCM%2098%20IPC%20Fuel%20Segment/fuelsegCompare1.jpg
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Hex%20Work/02%20PCM%2098%20IPC%20Fuel%20Segment/fuelsegCompare2.jpg
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Hex%20Work/02%20PCM%2098%20IPC%20Fuel%20Segment/fuelsegCompare3.jpg
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Hex%20Work/02%20PCM%2098%20IPC%20Fuel%20Segment/fuelsegCompare4.jpg
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Hex%20Work/02%20PCM%2098%20IPC%20Fuel%20Segment/fuelsegCompare5.jpg

[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
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Hex%20Work/02%20PCM%2098%20IPC%20Fuel%20Segment/FuelTankCompare.jpg

[Caleditor]

This is the beginning of the segment and when I changed this it had no effect on the fuel gauge operation.
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Hex%20Work/02%20PCM%2098%20IPC%20Fuel%20Segment/1stpartfuelsegCompare.jpg

[Caleditor]

This is the end of the fuel tank portion of the fuel segment. This is the area that controls the fuel gauge
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Hex%20Work/02%20PCM%2098%20IPC%20Fuel%20Segment/LastpartFuelSegCompare.jpg

[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
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Hex%20Work/02%20PCM%2098%20IPC%20Fuel%20Segment/Finished98IPCona02PCM.jpg

[Caleditor]

This is the Fuel Sender Input to the PCM for a 98 F-Body's Calibration
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Tuning%20Tables/Fuel%20Gauge/98PWM.jpg

[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
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Tuning%20Tables/Fuel%20Gauge/2002Van.jpg

This is a 2002 F-Body Fuel Sender Input to the PCM.
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Tuning%20Tables/Fuel%20Gauge/2002CamaroPWM.jpg

[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
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Tuning%20Tables/Fuel%20Gauge/2002CamaroOE.jpg
2002 Camaro with Van Settings
I will tell you that this is not the 98 Fuel Gauge Hz setting I use
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Tuning%20Tables/Fuel%20Gauge/2002CamaroJLCVanSettingsMod.jpg

[Caleditor]

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

[dave w]

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

I'm using EFI Live. I have looked at some of the hex code, but without the conversions I'm not sure what I'm looking at.

dave w

[Playtoy_18]

I can find the VIN number and pcm serial number in hex!

But yeah,that's about it.

[Caleditor]

I can find the VIN number and pcm serial number in hex!

But yeah,that's about it.

YES
The VIN, BCC, ESN/VCMID, and other information is all located together. The OSID Checksum and CVN's are located together also

[Playtoy_18]

What would be the result if you replaced the 12 digit serial number with all zero's or all one's in your experience?Anything negative?

[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
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Hex%20Work/2001/014000_zps400367b8.jpg (http://s1106.photobucket.com/user/PCMCalibrator/media/Hex%20Work/2001/014000_zps400367b8.jpg.html)

This is it in Hex and the Green part needs to be in place also
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Hex%20Work/2001/4000_zps43fd177b.jpg (http://s1106.photobucket.com/user/PCMCalibrator/media/Hex%20Work/2001/4000_zps43fd177b.jpg.html)

This is the Engine Segment and the Checksum
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Hex%20Work/2001/EFILiveChecksums_zps8f7a9cb9.jpg (http://s1106.photobucket.com/user/PCMCalibrator/media/Hex%20Work/2001/EFILiveChecksums_zps8f7a9cb9.jpg.html)

This is it in Hex
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Hex%20Work/2001/01Checksum_zpsd9a40e76.jpg (http://s1106.photobucket.com/user/PCMCalibrator/media/Hex%20Work/2001/01Checksum_zpsd9a40e76.jpg.html)

This is also a 2001 calibration. The ID info is at 6000 in this cal
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Hex%20Work/2001/016000_zps0a857d7a.jpg (http://s1106.photobucket.com/user/PCMCalibrator/media/Hex%20Work/2001/016000_zps0a857d7a.jpg.html)

This is it in hex. As you can see the part after is not the same as the 4000
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Hex%20Work/2001/6000_zps4e3464e1.jpg (http://s1106.photobucket.com/user/PCMCalibrator/media/Hex%20Work/2001/6000_zps4e3464e1.jpg.html)

[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.

[Caleditor]

I use hex almost as much as TC for 1999 on up vehicles

[Six_Shooter]

You cannot tune all 10,000 parameters in TC

So?

It would seem to be there are already existing forums that would be the correct places to post hex editing information. As one of the 2 admins, I would have a pretty substantial call in how the forums are set-up, along with the input of everyone else that runs the site including moderators. We will consider suggestions from members, but only make a change with a good enough reason that those of us that run the forum agree on. So far it looks like we don't agree with you.

[Lextech]

I would like to know more about HEX. The examples that AJ posted up are exactly the kind of thing I am interested in. I will say right off the bat---That I don't understand what I am looking at. I would like to have a 2002 DBF ( Spreadsheet of hex address parameters) I have Dementeds 2001 DBF but the 2002 OS is different. I would also like a 2004 DBF. AJ has been very helpful to me, putting up with my newb hex questions in the past.

Jeff

[Caleditor]

I would like to know more about HEX. The examples that AJ posted up are exactly the kind of thing I am interested in. I will say right off the bat---That I don't understand what I am looking at. I would like to have a 2002 DBF ( Spreadsheet of hex address parameters) I have Dementeds 2001 DBF but the 2002 OS is different. I would also like a 2004 DBF. AJ has been very helpful to me, putting up with my newb hex questions in the past.

Jeff
I wonder how "D" got his. He must have a friend that likes to help

[Lextech]

I wonder how "D" got his. He must have a friend that likes to help

Ha. Probably.

[Caleditor]

The first 2 files came from my "Good Bin File" These are used when we repair PCM's and are known 100% correct. They should be OE. The rest are from our 1000 bin repository

[Caleditor]

I think I know how he got them.

I tried to call you Sunday. I am putting a E-fan on my old truck. I had a question about connector #5, but I figured it out. I think I will put the 0411 in tonight after I tune a customers old black box with the truck.

[Lextech]

I tried to call you Sunday.
I have my phone off on Sunday until after church. I "try" to remember to turn it on when we get out. Tell me what year truck is and I will send you the wiring file.

Jeff

[Caleditor]

I have all of the pin-outs from GM. I can use excel too match the circuit numbers. The ones that don't match I use the schematics to get them correct

[Caleditor]

This is the Installed Matrix Table in TC
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Hex%20Work/2001/TCInstalledMatrix_zps16d79be8.jpg (http://s1106.photobucket.com/user/PCMCalibrator/media/Hex%20Work/2001/TCInstalledMatrix_zps16d79be8.jpg.html)


This is some of the information in the VDF editor
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Hex%20Work/2001/InstalledMatrix2001_zpsaf4cc55a.jpg (http://s1106.photobucket.com/user/PCMCalibrator/media/Hex%20Work/2001/InstalledMatrix2001_zpsaf4cc55a.jpg.html)

This is the table in hex. As you can see by the address above
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Hex%20Work/2001/HexInstalledMatrix_zps517b4c66.jpg (http://s1106.photobucket.com/user/PCMCalibrator/media/Hex%20Work/2001/HexInstalledMatrix_zps517b4c66.jpg.html)

In the editor tab you can see this table is 11 X 11
I copied that portion and inserted it into a new sheet
Can you see the table yet?
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Hex%20Work/2001/hexInstalledMatrix2_zps0b2c7216.jpg (http://s1106.photobucket.com/user/PCMCalibrator/media/Hex%20Work/2001/hexInstalledMatrix2_zps0b2c7216.jpg.html)

OK I inverted the table so you can compare it to the first picture
http://i1106.photobucket.com/albums/h361/PCMCalibrator/Hex%20Work/2001/hexInstalledMatrix3_zpsf9d7d76c.jpg (http://s1106.photobucket.com/user/PCMCalibrator/media/Hex%20Work/2001/hexInstalledMatrix3_zpsf9d7d76c.jpg.html)

Ok I have a customers car to fix and have to go

[Lextech]

I have all of the pin-outs from GM. I can use excel too match the circuit numbers. The ones that don't match I use the schematics to get them correct

I know you are capable. That is not the issue. BUT, Mine is already done.

Jeff

[Caleditor]

I know you are capable. That is not the issue. BUT, Mine is already done.

Jeff

You know you can build a simple worksheet that will sort all of it out for you.
You can simply insert a pin-out from a given year and it will match it to what ever given year by circuit number. GM uses the same circuit number for the same circuit in every car. Circuit #229 and circuit #451 is not #551, but they are both #51