Invalid checksum in hptubers instructions to correct

[Ncognito]

I've searched and did not find anyone that explains how to correct this issue. I changed a pcm in a buddys f body that wouldn't fire injectors, assume bad drivers. I changed the os as the new pcm came from a silverado but cannot open the tune read in hptuners even though I can read it from the pcm. Looking for direction to correct, I have read the pcm with hptuners and lsdroid to have a .bin and .hpt file. Looks like efilive can fix the checksum but corrupts the file. Any insight would be helpful, Hptuners had not been helpful even though I own their product with quite a few licenses. I can read the bin in tunerpro but not sure what to correct in hex, fairly new to reading them with these tools. Thanks Steve

[In-Tech]

I've searched and did not find anyone that explains how to correct this issue. I changed a pcm in a buddys f body that wouldn't fire injectors, assume bad drivers. I changed the os as the new pcm came from a silverado but cannot open the tune read in hptuners even though I can read it from the pcm. Looking for direction to correct, I have read the pcm with hptuners and lsdroid to have a .bin and .hpt file. Looks like efilive can fix the checksum but corrupts the file. Any insight would be helpful, Hptuners had not been helpful even though I own their product with quite a few licenses. I can read the bin in tunerpro but not sure what to correct in hex, fairly new to reading them with these tools. Thanks Steve

I've read this a couple times and am still not quite sure what help you need. Do you have the original read from your buddys f body file and it says the checksums are wrong or after writing that to a new pcm now that one is wrong??? Can you post the .bin file from your bud's f body? What pcm are you writing to? etc etc

[Ncognito]

Sorry, I tried to make sure what I wrote was clear but after re-reading it I can see it is not. I have read the original broken pcm from his f body with hptuners. I cannot open the file pulled from the broken pcm with hptuners, I receive a checksum error when attempting. I’ve already fixed his car with another pcm and another os sourced from a friend. I’m just trying to learn what causes the issue and how to correct it for future use. This is a “locked” pcm, at least according to lsdroid. I will post the hpt from hptuners and bin from lsdroid. I’ve tried a few things but I have not had any luck correcting it. This is a 0411 pcm running 12202088 os, 2001 ws6 iirc. Unrelated but I can read the bin pulled with lsdroid in tuner pro with no issues. Thanks, Steve