05 GTO twin turbo at 8 psi. I've picked up a new issue. At wot the car surges, like it's running out of gas, or someone is moving the pedal back and forth. I have a bigger pump and BAP. Logging shows everything staying the same, 88% TPS steady, fuel pressure is steady and normal, maf hz steady (slight movement but due to the surging). Timing isn't moving, injector dc is around 65% tops.
Feels like it's some sort of torque management that I've missed removing in the tune. But I would think if the throttle blade is moving some the TPS% would change on the datalog, true? It is smooth as silk at 3/4 throttle, only wot.