How do you know its running rich if you cannot log block 032 as that block is the fuel trims?
It is worth registering your VCDS as you can log everything and they will also give you support on the logs. Its only £62 or so.
I don't know the answer about the lambda, sorry and cannot open the file posted (grumpy old laptop!).
stinks of petrol, runs lumpy (occasionaly) and gettin alot of water/condensation out the exhaust
Also have you had the car remapped?? You probably need the map adjusting to suit the decat 
Not sure how many lambda sensors the ARZ has
it has 2 lambdas, called r-tech and they said the decat should complement the map so wont need to be mapped in....
£100 per sensor and £100 for a maf so wanna be right first time!!!
also has anyone used a maf cleaner befor???
