I have this crazy problem. My Power Commander display is reading a transient drop to 0 RPM. The bike will idle and low speed cruise okay, but when I open the throttle, the 0 RPM condition becomes more frequent and signal to the injectors doesn't occur so the bike sputters like crazy. I've swapped the PCV and that isn't it. I replaced the TP sensor and it didn't fix it. Also, the guys from Dyno-Jet connected remotely and couldn't figure it out.
Now, I investigated the CKP sensor by hooking up an oscilloscope. It shows a typical waveform for a VR sensor but with a flat spot I presume to be the missing tooth area of the tooth wheel. What it looks like is the ECU is failing to properly calculate the missing tooth section of the tooth wheel and is instead coming up with zero RPM and that's what the PCV is seeing. Does this sound plausible? I just can't figure out why the ECU seems to be putting out this random 0 RPM condition. Tomorrow I will scope the wires at the ECU I guess. Is there anything other than a bad ECU that could cause this?