I have an 09 Bullitt with ford racing exhaust, stock everything else. It is really powerful but I always want more. How much more (if you have dynoed it) have you gotten out of it by using the predator? Can you tell a difference in power or mileage? I know these cars will adjust the timing advance ...

Is there any difference between 9t08c (was this ever publicly released) and 9r08 for the U7151? I am currently thinking 'If it aint broke, dont fix it' because of problems with 9r05, 9r06, and 9r07. If there are differences, what are they? I am currently running 9t08c.

Thanks,
Bill

ok i been waiting for 2 weeks now anything yet

This problem hasnt been around for 2 weeks...

Works great, thanks. Much improved mileage over 9r05 (very happy about that), smooth shifts (not that I have a problem with firm shifting but 9r05 felt like it was going to drop the transmission), and my speedo is fixed (initial reason for purchasing). Onto the next project...

This sounds very familiar. I have not put 9r07 on my predator yet to try it but 9r06 put me in the endless loop. It loaded perfectly to the tool and never wrote anything to the truck (but did lock itself to the truck). Right now, I have the stock tune loaded (from the prep to go from 9r05 to 9r06. I ...

OK, scratch that last post, the idling appears to be correct (Ill chalk that up to the PCM learning the engine again) and the Speedo/odo is still 6% off. Everything appears to be as if I am running the stock tune (as I said in the first post). Any ideas on fixing this? The reason I bought the thing ...

I have used that cable at 300 (super slow, only used it once), 2400, 9600, 19200, 38400, 57600, and 115200. My predator defaults to 115200 but as long as your computer (DSDownloader) is set to 57600, I would expect it to work. The one that I have an occasional problem with was 9600 (default for my ...

OK, so I drove the truck tonight and something doesnt seem right. The last tune I attempted to load was the Premium Performance tune with corrected Revs/mile parameters for my tire size. My speedometer appears to be correct (which would imply a successful flash). I did not get above 45mph so I ...

If it helps, I am using that exact cable from RS without any issues on the predator @115200. I have run into a problem with it before on one device that I have to communicate with for work. (1 out of 10 or so) I am also using XP and the most recent drivers from the RS website.

Hello again,

I have a U7151 rev. 9r06 that will not write any tune to my vehicle.

The tool shipped with 9r05 which had no parameters to change so I updated to 9r06, which does have parameters but will not write to the truck.

Updating the rev:
1. Restore original backup (divorces the tool).
2. Use ...

I just purchased a U7151 mainly to correct my speedometer for larger tires. I figured that the performance improvement and the code reading would be a plus but I cannot change any parameters. It says that there are no parameters available.

U7151
CROM 9r05
2008 F150 5.4L V8 - Automatic

I just ...