[Power Hungry]

I see where there is confusion about Custom Tuning versus Custom Options. It's a difficult concept to get your head around, especially if I don't explain it correctly.

In regards to the VID and TS/GR, here's the deal:

• The stock and the canned tunes all use the VID to handle correction for the speedo.
• Custom tunes (the ones I make) will NOT use the VID only if you ordered your tunes with non-stock tires and/or gears. If the tires and gears are stock, I don't change anything and the VID takes precedence, meaning you don't need to do anything.
• If the customer changes the TS/GR values, then those values take precedence over the VID.

I know it's a bit confusing and I am sure it's because I'm not explaining it properly. Here's a suggestion... It's not going to hurt to enter your own TS/GR as long as the values you enter are accurate. For the most part, the TS calculator is pretty accurate and you can get the axle code off the door sticker to determine your gears. If there's any question, just put the TS/GR values in and roll on.


As you mentioned Jack, you should always complete the first programming session before doing any custom tuning. This helps to ensure that the custom files are built from valid data from the PCM.

The Load Previous Settings menu option in the Custom Options is used only when you've made prior changes to the Custom Options and you want to reload those settings the next time through.

It may not be clear yet, but hopefully were at least going from mud to brackish.