HOW TO Diagnose KTM TPI Crankcase Pressure Sensor Issues (Faulty CCPS on KTM/Husky TPI Bikes)

There is a growing number of TPI two-strokes that are having issues with how they run in the lower-RPM, lower-throttle range. It's likely that these issues are caused by a faulty Crankcase Pressure Sensor (KTM Park #55641075000). This issue potentially affects all TPI bikes from 2018 to current, however on the 2020 and 2021 models, there's a super easy test you can do in less than 15 minutes to determine if you have a faulty CCPS.