thought id give the escos a run b4 takin it to bits, and firstly it wont idle properly and keeps cutting out and secondly when pushing it it cuts dead at about 5000rpm, feels like spark is stopped anyone any ideas on this

 

A sensor has failed and it's in limp home mode, get it checked out asap, although I thought that limp home cut the ignition at 4k rpm not 5 ??
steve