I am working on a rock buggy with a 07 Escalade 6.2 and 6L80. Cannot get the TUTD to work. It will go to 2nd gear limp mode a couple seconds after being put into gear. I scanned the PRNDL. Using a sidewinder shifter in the 4 position the trans is in D. 3,2,&1 are M. we have a a zero gravity performance TUTD switch wired in TUTD.I can watch the TUTD command in data stream. Attached is the tune .Any input would appreciated HRG Bouncer progress.hpt