newby here ,polo gti

[mark53]

hi all,new to the scene ,just bought my polo gti after being told in need of throttle body clean

so here goes :
done throttle body clean ,never changed gasket
adaption done ok
vag com :misfire cyl 2 replaced set of leads & plugs

ecu incorrect coding ,no idea what this means

vacuum pipes seem good no leaks or cracks

compression tested cyl1 175,cyl2 180,cyl 3 200,cyl4 200 for got to press throttle pedal at time of test

problem :hesitation,stumbling when pulling away,idle hunting,to and fro motion when driving

please help as so annoying

many thnxs mark