getting po700 code tranny control system (mil request) on 02 duramax

Bigcat350

Caution May Blow Smoke
Feb 19, 2012
61
0
0
KY
Not to hi-jack this old thread but I went to the track for test and tune today, and of course the tranny was slipping but the truck would shut down about 100-200 foot from the end. Not sure if it was tranny or fuel. The tranny was slipping and I had codes P0103,P0700,P2138,P2140 ON 5 of the runs. It would run but slowly until I got the time slip and stopped and erased the codes with CTS. I still had a great time and ran good. I could only run MOD stock to keep it from limping or shutting down. When I cranked the tune up it ran great off the line but fizzled out down the track. What do you think I need to look at? The BT lock up box helped off the line and until it went to 3rd.