True...I have a good friend they did it too.
To "fix" a problem.

per request...

bump

i would pick up one of these it may help

http://www.stuffforyourranger.com/store/index.php?main_page=product_info&cPath=91&products_id=203&zenid=d482e5e26e178648e29ff29621b815a8

Thanks! I ordered one! $6 for the part. $10 for shipping (OUCH!)
Well, it's still cheaper than a screw up at the ...

So, i tried updating to an older firmware, 8r10, and it works fine. It installs, and boots normally.

Am i doing something wrong? Thanks..

On the older tool ver 8 is the correct update.
From what I understand...
Version 8 is the same update as version 9, except it is for the "older" tool.
The ...

I had a problem using prolific driver posted on here.

I am using Windows 7 64bit
USB to Serial cable
Prolific 32 bit driver

Here is the driver solution I found.

Thread: DiabloSport U7158 latest software version?

Fast, simple, quick, easy and it worked the first time!

ummmm... restore your original backup before you ever take it to the dealer... easy enough...
Agreed. My concern is that I keep my tuner at home.
I don't see a need to carry it with me everywhere I go.

If I have an issue and I'm unable to re-flash before the $tealership get it.
I think that ...

Can I download a newer version tuner to my Diablosport Preditor? The version I have is 7r5 For a 2004 Lightning ? Thanks!

Yes you can go up to revision 8r10
There are LOTS of additions and enhancements to the 8r10 software from 7r5

The difference between 8r10 and 9r02 software update is the ...

Here are links:
PL2303 Vista Driver Revision Notes.txt

PL2303_Prolific_Vista_332102.exe

After the driver installed the tool upgrade to revision to lightning-8r10.crom took 2 minutes!
I worked for me this first time I used it. It updated with 2 clicks. Hopefully it will also work for you ...

Can I download a newer version tuner to my Diablosport Preditor? The version I have is 7r5 For a 2004 Lightning ? Thanks!

I just went from 7r5 to 8r10 on a U7158
I believe that is the max you can go without upgrading to a newer device/tool.
The revision from 7rx to 8rx had a LOT of additional ...

I'm trying to update my Diablo Predator U7158
I am using a USB to serial adapter cable.
I was told by Diablo support to download and install the PL2303_Prolific_DriverInstaller_v110.exe

Well after MANY (OVER 10+) failed attempts at trying to install the
PL2303_Prolific_DriverInstaller_v110.exe ...

What is the latest software version for the DiabloSport U7158 tuner?

Yes, where are they?
I would like to see it too!
Can I get the dyno chart for my vehicle?

U7158
2003 F150 HD S/C
Revision ?

I'm sure this has been covered many times already but I'm a newbie here and looking for advice.
OK, here's my question.

In the unlikely event the FOMOCO dealer re-flashes my truck before I am able to restore the factory tune via the U7158 is there any way I may be ...