MotorFreakz - Vauxhall insignia sri turbo came into us with the following cam/crankshaft faults. Usually faults like this are down to incorrect timing caused by stretched chains/snapped guides/tensioners or poor installation. On
DTC P0340 Camshaft Position Sensor Circuit Malfunction Diagnosis - AxleAddict
Don't follow the fault code – follow the smoke signals - Aftermarketonline.net