Brand new PCM question
02-19-2010, 04:12 PM
#1
Brand new PCM question
My trans builder has a customer with a 06 TBSS, custom tuned & locked pcm. The tune was done by a previous owner of the vehicle, and the company that did it is out of business. The line pressures are way too high, and the transmission needs retuned. So......
A new pcm has been ordered. I'm pretty sure that a new pcm has no factory tune in it, right? Using HPT, will I have to license a stock tune from the repository, load it, then license again(to the VIN) to retune it? Or should I have the Dealer program the new pcm with the Tech 2, then go from there?
Or, am I going about the whole thing completely wrong?
A new pcm has been ordered. I'm pretty sure that a new pcm has no factory tune in it, right? Using HPT, will I have to license a stock tune from the repository, load it, then license again(to the VIN) to retune it? Or should I have the Dealer program the new pcm with the Tech 2, then go from there?
Or, am I going about the whole thing completely wrong?
02-19-2010, 05:39 PM
#4
I think the TECH II should be able to overwrite what's on the PCM though. You won't be able to READ a locked PCM as that's the whole reason behind locking it. If you had the stock calibration I would think you could do a WRITE ENTIRE over the current flash. Find a dealer who'll work with you and see if they have a guarentee policy 
Trending Topics
02-21-2010, 07:53 AM
#9
Bill I just figured out that was you...
WHAT HE SAID LOL...(hijacking thread) Bill iam gonna post here as well I think Sean sent you an email as well about my 2003 GMC not loading tune ...will start a new thread hope you join in
WHAT HE SAID LOL...(hijacking thread) Bill iam gonna post here as well I think Sean sent you an email as well about my 2003 GMC not loading tune ...will start a new thread hope you join in
Thread
Thread Starter
Forum
Replies
Last Post
GreyChevy
Tuning, Diagnostics, Electronics, and Wiring
1
07-07-2015 08:57 PM
