noorj

iTrader: (17)

Hey guys, I have had my trifecta tune (2006 LE5 cobalt) for a few months now and am switching to hp tuners. My question is will my PCM be locked? Or will I be able to write/ change the trifecta tune with hp tuners? I believe I have the E67 ecu

09CobaltSS1

It's really a crap shoot to be perfectly honest but in the vast majority of cases in my experience you MUST flash the stock tune file back via Trifecta first in order to be able to pull/write anything via hptuners. I have heard of a few cases where a full write of a stock file via hptuners will work, but trust me, in most cases it will not. Your best bet is to just flash the stock file back using the EZFlash software and then have your new tuner do as he needs with hpt. It will just save you a ton of headaches.

noorj

iTrader: (17)

Damnit haha. Reason I asked was because I was selling my EZ flash cable and wasn't sure of the answer to this. I thought because of the switchable tunes on the ss/tc and the hp tunes over a trifecta tune I thought it would work. Guess I'll need to find someone close now when I get HPT. Thanks for the answer man!

ItalianJoe1

iTrader: (10)

The hp tunable trifecta tunes are special, as mentioned above when i've encountered a trifecta car, you can't do anything with it via HPT. I could try to force a write entire, but it's risky.

elecblue06

iTrader: (1)

force write entire works sometimes.. if the car is running on a "custom" os so it has select a tune or something then you cant as it wont register in HPT as a valid os id

09CobaltSS1

^^Even a "standard" os still can't be flashed over alot of times. I've actually had this issue with a couple lsj's specifically

elecblue06

iTrader: (1)

that must just be because LSJ's are fail lol

noorj

iTrader: (17)

So i can just flash it back to stock with trifecta then write with hpt without problems, right?

09CobaltSS1

Absolutely! That's what I had to do with elecblue06's LE5 when I switched him from Trifecta to HPT and it gave me no issues at all.

noorj

iTrader: (17)

Awesome thanks man. On a side note has anyone done an NA tune before? Lookin for some pointers/ mentor to help/ buy a time from

09CobaltSS1

I've tuned lnf's, lsj's and a boosted le5 on e85 but nothing n/a. With that being said, I'm sure a n/a le5 on gas couldn't be any harder to setup than the boosted le5 on e85.

Let me know if you need any help and I'll see what I can do.

dtabbs

iTrader: (5)

Check out my thread over on the HPT forum. To see all of the attachments you will need to create an account. I tend to go further in to my tune then most, so it may have more info than you want.

http://www.hptuners.com/forum/showthread.php?t=28136

Also, another thread from a guy that was tuning a LE5 Sky.

http://www.hptuners.com/forum/showthread.php?t=33847

noorj

iTrader: (17)

Awesome thanks guys! 09cobt I may be contacting you very soon

noorj

iTrader: (17)

Sorry guys but another question, will I still be able to log with hpt even with my trifecta tune? And if I only get credits for my 2006 LE5 can I still log other cobalts like 09 LNF?

dtabbs

iTrader: (5)

You can log any vehicle that is supported by HPT without purchasing credits. Credits are only required to edit a tune. You can even pull existing tunes from any vehicle that is supported and look, but not modify their tunes.

09CobaltSS1

^^this..