Had my mk6 GTI for a few months now. The past week of so I've been having "engine fault visit workshop" followed by the EPC light come on. Vcds said it was camshaft position sensor g40 intermittent signal. Swapped the sensor out and it's still doing it. Had it on vcds last night and monitored the misfire blocks. Misfires at 1400-1500 rpm. Don't know what to try any help??