Originally Posted by
ELaw
Looking at your tune I just realized something else... I'm not sure whether it can cause limp mode but it's definitely messed up.
Your ECM 29480 table "Supercharger volumetric airflow vs. sc pressure ratio vs. sc RPM" seems to have several problems. First with the pulley ratio you're running, the supercharger RPM will be 23,544 at an engine RPM of 7,200... higher of course if you spin the engine faster. But the supercharger RPM axis in your table stops at the stock value of 18,000... that's a big difference!
Likewise, the highest pressure ratio in your table is 2.10 (same as stock, at least on my car) which corresponds to a boost of about 16 PSI (at sea level). As you indicated, you're running a lot more boost than that!
So you might try making some tweaks to that table and see if it helps.