truck won't start

[Berryman]

I tried to install a new Predator tune U7170 tonight on my 2002 Ford F250 7.3 liter diesel. After going through the procedure carefully, the truck engine turns over but will not fire.

I tried to uninstall the tune, but now the Predator gives me the message to the effect that it cannot read the truck at all.

What do I do now?

I bought the truck used; is there a possibility that there was an earlier tune already installed? If so, what kind of damage would this do?

Thanks,
Dennis

[tuningss]

Check the computer under the drivers side of the dash and see if there is a chip installed. If there is, disconnect the battery and remove the chip. Then try to start it.

[Berryman]

Thanks for the help! It turns out there was some sort of aftermarket chip already installed in the truck. I removed it as per your instructions and now the truck runs again! That's a huge relief.

Unfortunately the previous owner duct-taped the chip in place and when I tried to remove the tape it ruined the label. I have no idea what kind of chip was in there or who even made it.

[mikel]

Thanks Mike!!!

[tuningss]

good to know. Glad I could help.