Thread: Shift firmness and timing questions
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Old Sun, February 22nd, 2009, 05:42 PM
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Originally Posted by banks View Post
i got a question reguarding the shift firmness, once i have adjusted it to what i want. do i scroll down to load previous settings and hit enter says loaded pervious settings. does this mean that changes that i made are loaded. or do i need to scroll up where it says done and reload my performance tune. its hard for to tell if changes have been made b/c im making little steps at a time and what to make sure im doing it the right way
This "Load Previous Settings" feature seems to be hard to understand, and I'm right with those who are not sure of anything anymore. But, here's what I think, and this will give Bill yet another chance to try to get me to comprehend:

When you enter the "Custom Options" menu, the FIRST thing you want to do is "Load Previous Settings" - assuming you want things like your previous settings for tire size, firmness, etc., reloaded. THEN, you can go through the individual settings if you've decided to change anything to a new value. Make sure you hit <Enter> after setting anything new to return to the Menu, because if you "back" out using the <Menu> key, the new setting you just entered will not be saved. Finally, when you're finished, make sure you select "Done", to save everything and start the PCM programming process. If you back out before hitting Done, by hitting the <Menu> button again, your changes aren't saved, but I think it MAY start programming with possibly bad values for Gear Ratio (GR) and Tire Size (TS).

So, don't enter a new shift firmness and then Load Previous Settings, because if you do, your firmness value is set back to what you had before.

And I THINK, if you enter the "Custom Options" menu WITHOUT using "Load Previous Settings", you are liable to have bogus values inserted for GR and TS. This does not happen if you don't enter Custom Options though - if you bypass Custom Options, factory values for TS and GR are loaded from the VID block in the PCM or from the Custom Tune itself (if you've chosen a custom tune).

The "Previous Settings" file is NOT unique to a specific tune. It is a "master" file of setting preferences that accumulates as you revise values in the Custom Options menu. These settings can be and are applied to any new tune you choose if you "Reload Previous Settings". So, if you bump your timing 1 degree because you use 93 octane gas in a 91 octane tune, be careful. If you switch to an 87 octane tune and "Reload Previous Settings", your timing will be incorrectly increased by 1 degree over the 87 octane setting.

And now we'll see if I got it right?

- Jack