Had to use hpt as efi couldn't read
Ok had a ls1 come in for a mafless tune... Could not read with efilive .... Ended up reading it with hpt and found the tune to be stock.... Ended up tuning/ getting credits with hpt with an ok result.
Is the there anyway I can make this PCM able to be read and tuned with efilive if I have it licensed and tuned with my hp tuners dongle????
Wondering what the process is....
Yes, you should be able to read/write it with EFILive, as long as it's not locked and and it's not an HPT custom OS.
If it is indeed a stock GM OS then there should have been no reason EFILive couldn't read it too.
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Thats what I thought, im running the latest updates & firmware with bootblock.... efilive thought that it was locked... And hpt read it out no problem...
If the pcm had a custom HPT OS previously and then returned to stock before the car came to me? would this make a difference??
The car now has a enhanced tune HPT (mafless) applied which i had to license.
If PCM had a HPT custom OS, and was then returned to stock OS, then you would be able to read/write with EFILive.
Last edited by joecar; August 28th, 2012 at 03:11 AM.
Ok so now begin to wonder if the tune in the car was standard.... Is there a sheet anywhere that lists released GM operating systems for GEN3's?If PCM had a HPY custom OS, and was then returned to stock OS, then you would be able to read/write with EFILive.
Do you recall what it was?
For the Aussie LS1's, most of the GM OS's start with 122xxxxx, a custom OS might be 012xxxxx
I no longer monitor the forum, please either post your question or create a support ticket.
Had this exact same problem - once a COS is applied in HPT, it does not easily go back to the stock tune... I'm not sure how they apply thier COS's, but that seems to be the key. I can't tell for sure what this customer did, but every tune he had showed the COS applied - maybe he overwrote his stock tune?? I ended up tuning it with his HPT cable for the mean time, but he is going to have to get a stock tune and pay the credits to put it back to a stock tune so I can do an EFILive COS on it...
And for the record - I hate HPTuners more than ever!!!
GM EFI Tuner
02 WS6 9.41 @ 143 MPH 3675#, drag radials, pump gas, through the mufflers - sold
ok here is tune that the car had in it.......
OS 12225074 and says speed density enhanced applied.....
"speed density enhanced applied" is thier COS...
GM EFI Tuner
02 WS6 9.41 @ 143 MPH 3675#, drag radials, pump gas, through the mufflers - sold
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