> The biggest problem continues to be very rough running anywhere
> under 18”MAP.  It really won’t run any lower because of and bucks
> and surges (but it runs really great above that MAP).
I haven't tried programming yet, Dave, but I have a similar issue with my
3rd gen + single stage turbo. With the mixture set at full lean it runs very
rich at low rpm. I need to look at the book again, but isnt there a
programming option to change the entire mixture scale at one go? I was
thinking I could lean the entire range, then richen at the higher rpms.

Tracy???

John Slade

If you had the latest updates I would have suggested that you use the alternate map table load (loads MAP table downloaded from my EC2) but I don't think you have.

So,
Suggested procedure is to check mixture at about 23 - 24" Hg MAP.  Adjust Mode 3 for mid-scale mixture on monitor with mixture control at 12:00 if necessary.   Then start programming at lowest MAP (idle) using mode 1 and work up in 1/2" Hg increments. 

If this does not give satisfactory results let me know.

Tracy