Previously Tuned 6.4 No tuner to select

dzldoctor · Sep 30, 2013

Got a friend who just bought a 2010 6.4 truck that is tuned no idea whose tuner or brand. Just knows its a hot tune. He does lots of fairly heavy towing. Wondering if a sct will overwrite the tune that's in the truck or if it will need to be flashed back to stock tune with IDS then install new tuner.

webb06 · Sep 30, 2013

Should store whatever file is loaded as the stock file. If you want the actual stock file it'll need flashed with IDS

drunk on diesel · Sep 30, 2013

not sure how SCT flashes the 6.4's, but on the 6.0's it's sensitive to flashing over what's already there.

I know for a fact though that an H&S tuner doesn't care. It wipes the whole thing clean and rewrites it

WoodBoy · Sep 30, 2013

I'm pretty sure that SCT incorporates some of the stock file into the tuning files when it saves it and writes back a tune. Not 100% sure but pretty sure. I am sure Eric or Matt could answer this though

sootie · Sep 30, 2013

we recently had this happen-an SCT tuned 6.4 with 9625OR. we selected "return to stock" and the tuner is now unlocked. re-installed dpf, truck drives fine and goes thru regen. hook up for IDS for updated flash, states the computer is locked. retune with spartan, no issues, return to stock, the computer still says its locked.

i havent got to the bottom of it yet but i think its a similar issue...

Oil Field Trash · Sep 30, 2013

unless its had a spartan....then its a PITA to get it back to stock. My buddy bought an 08 from a dealer and when he went to over write it with his SCT it said that it couldnt read the spartan files.

drunk on diesel · Sep 30, 2013

Unless you're loading an H&S to it

dzldoctor · Sep 30, 2013

We have NO idea what was in it previously, so maybe will get it back to stock and go from there.

mike@haller's · Sep 30, 2013

Just went through this. Sct will take the file as stock and tune. But if you ever try to untune the truck. The sct wont recognize the file and lock up half way. Locking the ecm out. Only way to fix at that point is to have someone force a stock flash into the truck. I would just get a stock flash put in it first.

Gearhead · Sep 30, 2013

if it ever needs to go to a dealer it will need a stock file in it... that would be my motivation.

3brorce · Sep 30, 2013

Can you not load a known clean file in it or will it still want to read it out first. I know I flashed a different stock OS in before but do not remember if it needed the read first before it flashed that OS in.

Morgan@Midwest Diesel & Auto · Oct 3, 2013

If it were my personal truck I would put an h&s on it and be done. Problem solved. But then again I would not be needing to take it to a dealer for anything. And if I did it's probably to trade it off so who cares what's in it at that point.

SickStroke6.0 · Oct 3, 2013

The H&S tuners have all the stock files built in. So when you return it to stock, it will actually return to the original stock tune. Maybe Bentley can confirm this.

powerstroked08 · Oct 3, 2013

Sledpull said:
If it were my personal truck I would put an h&s on it and be done. Problem solved. But then again I would not be needing to take it to a dealer for anything. And if I did it's probably to trade it off so who cares what's in it at that point.

:whs:

6.4psd916 · Oct 6, 2013

Sct custom tunes like the ones from gearhead for sct will overwrite the file, tunes like innovatives preloaded will modify the current stock file and cause some really weird stuff happen. I had a x3 tuner fail on me sent It in and had it fixed, then swapped to a livewire. After realizing the problems caused by the not stock file, I talked with sct, they wrote a new stock file for the truck, remote logged into my computer and put the stock file on the device, then put it on the truck and retuned to stock and all was good, no problems since.

Stroked777 · Oct 7, 2013

If you go with h&s I believe then have stock files on their site you can upload on to the SD card and tune it that way

3brorce · Oct 7, 2013

6.4psd916 said:
Sct custom tunes like the ones from gearhead for sct will overwrite the file, tunes like innovatives preloaded will modify the current stock file and cause some really weird stuff happen. I had a x3 tuner fail on me sent It in and had it fixed, then swapped to a livewire. After realizing the problems caused by the not stock file, I talked with sct, they wrote a new stock file for the truck, remote logged into my computer and put the stock file on the device, then put it on the truck and retuned to stock and all was good, no problems since.

Same thing I did to revert back to an older OS.