AutoTune in MegaTune

[swackdog]

I just tried using AutoTune for the first time tonight with no results. During the entire run, there was a message "tuning point outisde MAP" or something close to that. Any ideas?

[LeoK]

I get the same thing when connected to the stim... but I believe thats because there is nothing on the MAP.

[Matt Cramer]

It means you are in an RPM or MAP range where AutoTune is disabled. The way to adjust the window is a bit complicated. Go into your project's folder. Open the mtCfg folder inside this directory. There's a file in there called custom.ini. Open it with Notepad or a similar text editor. You'll see a block that begins with [AutoTune] and a couple of computer-speak if-then statements. You want the block that either begins with "#elif MS_II" or some note that it works with MS-II. Inside that block, you'll see a set of notes like this:

xLimits = 1200, 5000
yLimits = 20, 90
zLimits = 10, 150

The xLimits control the RPM range where AutoTune works, and the yLimits control the range of MAP values where it works. The zLimits controls what it can set the VE table to. Adjust these numbers to put the AutoTune range where you want it to be.

[swackdog]

Matt,

Thanks for the help. I just punched in the new #'s in custom.ini and will try them out in the car later tonight.

[swackdog]

Took the 911 out for a tuning run this afternoon and AutoTune worked great. Matt - thanks again for your help. My VE table is a little lumpier but I guess that is what the engine needs.