anyway to unlock efi live tune

Bdsankey

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maybe a dumb question, but if your tuner locked their tune, and now they have gone out of business, is there going to be anyway to unlock it?
No, that is not possible unless that tuner decides to give you the unlock code which I would bet they won't since they're out of business and as it is their IP (their tuning/their method etc). You will very likely have to buy new tuning.


You can send it to SoCal Diesel and they can unlock it and put a stock tune in it.
There is a difference between unlocking the ECM and unlocking the tune, they are not the same thing. Any diesel shop can unlock the ECM, not the tune. If you flash in a factory file it will remove the old file and now be ready for a new tune. The market for tuners has gotten very slim with today's EPA climate/stance.

If the ECM itself is locked SoCal or any diesel shop with a bench harness can attempt to recover it which may take some time.
 

darkness

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There is a difference between unlocking the ECM and unlocking the tune, they are not the same thing. Any diesel shop can unlock the ECM, not the tune. If you flash in a factory file it will remove the old file and now be ready for a new tune. The market for tuners has gotten very slim with today's EPA climate/stance.

If the ECM itself is locked SoCal or any diesel shop with a bench harness can attempt to recover it which may take some time.
Correct. So without knowing if it’s the tune or the ECM, at least he knows he has options. My truck had moonshine tunes and the ECM was locked. I couldn’t flash over it.
Also SoCal doesn’t use a bench harness. He replaces something inside. For a $50 extra fee it can be expedited and done that day. I didn’t choose that option and was done the next day anyways.
 
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Bdsankey

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Correct. So without knowing if it’s the tune or the ECM, at least he knows he has options. My truck had moonshine tunes and the ECM was locked. I couldn’t flash over it.
Also SoCal doesn’t use a bench harness. He replaces something inside. For a $50 extra fee it can be expedited and done that day. I didn’t choose that option and was done the next day anyways.

Hmmm, last I talked to Gabe they will try to repair ECMs but will also try to bench unlock, that is some good info to know! On your LBZ or LB7? The E35A controller is pretty robust and hard to actually brick/damage than the E54 controller. Usually a passthrough flash from a PC with "assume lock may be faulty" and try common aftermarket keys" checked works.
 

Bdsankey

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It was on the ‘02. I tried a few times with both check marks. Pass thru from the pc.
I've had that happen where only a bench harness will make it work. It has to do with how finicky the low speed coms is from the OBD2 port to the ECM since high speed CAN is not fed to the OBD2 port like it is on 06+.
 

Cougar281

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No, that is not possible unless that tuner decides to give you the unlock code which I would bet they won't since they're out of business and as it is their IP (their tuning/their method etc). You will very likely have to buy new tuning.




There is a difference between unlocking the ECM and unlocking the tune, they are not the same thing. Any diesel shop can unlock the ECM, not the tune. If you flash in a factory file it will remove the old file and now be ready for a new tune. The market for tuners has gotten very slim with today's EPA climate/stance.

If the ECM itself is locked SoCal or any diesel shop with a bench harness can attempt to recover it which may take some time.
Unless something has changed, as far as I know, the only way to lock a tune on a LB7 is to lock the ECM with a custom key, bit if you can brute force the key, you can read the tune all day long. On the LBZ and newer, however, you can lock the tune such that it can't be read, but it can be overwritten using pretty much anything, including SPS.

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NC-smokinlmm

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Can you use another tuning tool? My rcsb was tuned with hp tuners and I got into the tune by reading it with EFI live, diffrent world I know but still a gm ecm.
 

Bdsankey

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Unless something has changed, as far as I know, the only way to lock a tune on a LB7 is to lock the ECM with a custom key, bit if you can brute force the key, you can read the tune all day long. On the LBZ and newer, however, you can lock the tune such that it can't be read, but it can be overwritten using pretty much anything, including SPS.

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You can lock the tune from viewing/edits and also allow it not to be read while not locking the ECM on an 01-10 meaning you can flash over it but can't read the tune out.


Can you use another tuning tool? My rcsb was tuned with hp tuners and I got into the tune by reading it with EFI live, diffrent world I know but still a gm ecm.

I think it would depend if the HPTuner's software locks the ECM from reading which is what EFILive does when the box is checked. It all, I believe, comes down to how the tuner/guy flashing it in sets it up.
 

1FastBrick

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You can lock the tune from viewing/edits and also allow it not to be read while not locking the ECM on an 01-10 meaning you can flash over it but can't read the tune out.





I think it would depend if the HPTuner's software locks the ECM from reading which is what EFILive does when the box is checked. It all, I believe, comes down to how the tuner/guy flashing it in sets it up.
HP Tuners can Not tuner lock in the same Fashion. In fact I don't believe they ever got it to function properly. They did copy EFI Live's proprietary Custom Operating systems and can read those tunes out. I have never tried to hook up to a diesel with HP Tuners. My Experiences on the gas side only showed me there sketchy stability during the flash process and even Sketchier business practices along with poor customer service...
 
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Porno Joe

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So yes my question was specific to the tune not the ECM.

not that I have an immediate need, but I was thinking along the lines of if I wanted to change tire sizes I can’t now without paying someone to completely redo my tuning. Which kinda sucks cuz I have no complaints about my tuning
 

Bdsankey

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So yes my question was specific to the tune not the ECM.

not that I have an immediate need, but I was thinking along the lines of if I wanted to change tire sizes I can’t now without paying someone to completely redo my tuning. Which kinda sucks cuz I have no complaints about my tuning
You're SOL on that one. You will need to buy new tuning to change the tire size/speedo correction.
 

THEFERMANATOR

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For an LB7 I believe you can use the internal bypass pin to do a forced read. I know it works on 99-07 P01/P59 which is the same case, similar board, but the gasser counterpart. I do not know if it has been tried on an E54 though. This is not talked about much, but with all the tuners closing up shop, this video was put out.
Source: https://youtu.be/oGeMK6LvQck
 
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