If you're that concerned then best bet is to buy vcds to scan it now & again, assuming its just a precautionary thing or do you actually have any problems currently?
yes ,for example the air flow meter could be "within" its perimeters (lets say its telling the ecu its 35 deg C when its only 5 deg C) and sending the wrong signal which will cause power loss as the ecu will be adjusting fuelling and timing to suit the hotter intake temp,there are other things too which can effect the engine and not throw a light
im in worksop,dont have vag com or vcds but have code readers and data readers so i can monitor things like the air flow meter etc..and im free
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