Has anyone had this experience? With the Translogic QS4 fitted the bike throws out service code 21 (Crankshaft sensor) and the bikes dash KTRC warning lights flash and fails to start. Remove the QS the bike starts and the service code clears. The bike is a track bike and came with the QS fitted. So I’m thinking the QS ECU has failed, shorted wiring somewhere or QS is not wired properly. Any similar experience / info. would be appreciated. Cheers.