Hello all, I'm having an issue that's been going on for awhile now. This only happens in 1st gear pulls. 9 times out of 10 when it goes into REP Mode it will toss codes TSC1278 and every once in awhile it will toss out 1516. With the suggestion of a member on here i lowered the boost to 17ish and it will not REP at all. Tried over over for weeks and could not get it to REP. Same results when i took boost off and ran it N/A. No issues at all. Figuring this out is much beyond my tuning skills if it is a tuning issue. Any help is very appreciated. I poster tune and some logs. Disregard Stoich # i'm mixing fuels.
C5 corvette 1999,6.0 ,6mn, ls2 TB, F-1x running 25lbs boost.