I recently had a chance to log out Tahoe and I was a bit un nerved at what I saw... although I'll admit that I have never data logged a 5.3L before, I have be dabbling with a borrowed copy of HPT on my LS1 T/A.

Anyways... Timing shows high high 30's at idle and 40-53º of timing driving nice and smooth around town.
from 40km/h I slowly rolled into the throttle while the transmission was in overdrive... I gave it just enough to create load on the engine without downshifting and was rewarded with upto 4º of KR with 89 octane...

I followed steps shown on a HPT forum thread called "TRQ MGMT be gone" so I *believe* all the torque management is disabled in hopes that the KR was simply a form of TRQ MGMT but there was no change...

I have a feeling that the previous owner could have been farting around with the tune, or we've got some serious issues.



Normally I'd goto HPT's repository and download a stoke file for my truck, but as stated, this is borrowed HTP gear and therefore I don't have the log-in info for access to the reposity....



Is there any chance someone could upload or email a stock tune for our truck so I can work on some trouble shooting?

email is frisky13@hotmail.com
You have no idea how great-full both myself and the very soon-to-be wife would be!

 

I have a buddy coming over later today (I hope) with a Superchips Cortex(?) hand held programmer in hopes that it contains a stock tune, but its a bit of a long shot..... I'd still prefer to have a stock bin backed up regardless.

 

Sent you a pm.

 

Thanks!

Just going to head downtown so I'll throw it in and see how it works.

 

If it doesn't work for you, I have one as a cal file, but I could load it in to a PCM and extract it as a bin file. I'd have to see if I have the correct PCM around, but I pretty sure I do, otherwise I'll stop by the yard and get one.