Downloading custom tunes?

[Jackpine]

Originally Posted by krist003

My custom tunes are available and i can't wait to get them downloaded. The manual says to update your custom tunes for the Gryphon, plug it in to the computer, download the tunes, then just plug it back in to your truck.

My question is, do I need to do any update or special start procedure before i start my truck (like when installing the Gryphon for the 1st time)? Or do you really just plug it back in and start the truck and use it? I could not get a clear answer searching the site and forum.

Also, it is okay to unplug the gryphon at any time right? The tunes will still remain, but you just lose the interface/display right?

Thanks all!

You're really asking two questions here.

First: I think you have the monochrome Gryphon? But regardless, SET YOUR TUNE BACK TO STOCK ON THE TRUCK BEFORE YOU DISCONNECT THE PROGRAMMER!

Then, with the tune back to stock, bring your Gryphon to your PC and with Pegasus running (monochrome Gryphon) or Fusion running (CS/CTS Gryphon) plug it in to the PC.

A monochrome Gryphon screen will change from red to green when it connects. Then, click on [Updates]->[Custom File Download] for the monochrome Gryphon and sit back and wait. When the download finishes, you can simply disconnect the Gryphon, take it back to your truck, turn the ignition key to ON and plug the Gryphon in. You'll see a new "splash screen" once you get past the hex code page.

With the CS/CTS, Fusion does all the work as soon as you plug it in. Disconnect it when the update finishes and plug it into your truck. The ignition does not have to be ON.

As I recall, BOTH units can have kind of confusing directions at the end when still plugged into the PC. Just ignore those and unplug the programmer when the update is finished.

Now, your second question: Once you load a tune into the PCM, the programmer does NOT have to remain installed. The ONLY way you will lose the tune is if you change it with a programmer! Removing the battery will have no effect on the stored tune, and the programmer does not have to be installed for the tune to work properly. The programmer "remembers" the tune you loaded into the PCM too, even if it is disconnected.

Hope this all makes sense.

- Jack