just to add after shooting them videos and having a little rev it sat at around 700 rpm for about 10-20 minutes without dropping in RPM, Oddly the RPM drop when AC is turned on which is not what it used to do they used to raise a little.
and although its idle speed is stable it still seems a bit unbalanced and the exhaust seems aweful poppy/rumbley than before but that might be me stressing out
Why when ever i get a fault it seems to be one nobody has ever had before i dont know