Hey guys. Have a 2007 LQ9 in a 73 volkswagen bus. Has LS3 injectors and Trick flow top end kit with fast manifold and BBK throttle body. Did the usual tune on it and drives fine except sometimes, not all the time you'll be holding a steady throttle in closed loop and all of a sudden goes to open loop decel and the thing goes lean and falls on its face. You continue to hold that throttle and it'll come out of it and go back in. It doesn't do it all the time. I've tried disabling DFCO and and left it stock with no success. I've logged pedal APP1 and 2 and throttle position and nothing changes when the issue happens. I don't see any change in MAP or MAF at the time too. No codes for anything.
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