Ok a guy I know paid me $100 to take off his speed limiter with HPT so I did and he called me today and said he bought a diablo handheld (i advised a mailorder tune but oh well not my truck) he said it would not work because It had a HPT license on there so i put the stock tune back on the truck and it still dont work. Is there anyway to remove the HPT license for the truck?

 

Sounds like a load of...to me. Unless you applied a custom operating system or locked his tune theres no reason a handheld tuner shouldn't work just fine.

 

I dont evan know how to lock a tune and it doesnt have a custom os. he should be able to put the diablo on with hpt as far as i know maybe he got a bad handheld.

 

Had a similar problem on my DMax just yesterday. I started out using Edge Evo and then went to an HPT tune and since I was selling my HPT I put the stock tune back in that I saved. Went to try and load the Evo again and ran into checksum errors. I had to update the Evo which said the tune was not a stock tune anymore.
Basically I was able to download a stock tune into the Evo from Edge's website which turned the Evo into a "Stockwriter" that uploaded a stock tune. Then I was able to load the normal Evo tunes fine.

I'm sure now if I try and tune it again with HPT it probably wouldn't work anymore but I'm not about to find out since my HPT is officially somebody else's.

 

Btw, I didn't think HPT offered custom operating systems like EFI or does it?

 

http://www.hptuners.com/forum/showthread.php?t=8632

We've offered Custom Operating systems since BEFORE Efilive was even in the tuning software business

 

Oh those, I was thinking something else I guess.