Thanks for looking! This is a 99 C5 Corvette and the engine was recently upgraded to a 2004 LS6 crate motor. I've tweaked a good number of the transmission settings. Still trying to get the 1-2 shift RPM right. Main problem I'd like some input on is the torque converter clutch. It is causing a quick jerk, usually around 30 mph and also around 40 mph, both at light throttle. I've attached a scan file, you can see the TCC PWM (%) drop around frame 1030 and also at 1410. This is a couple of instances of the jerk I'm reffering to. Also wondering why the TCC is staying at 100% during the 1-2 shift? Copy of the tune file and .cfg is attached also. Any help is appreciated. Michael
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