The motro still runs but there is no power and cant be driven. Motor idles but when you put your foot on the gas it does nothing but coughs and splutters. Has new battery, plugs, air filter, fuel filter and has had a fuel pressure guage on the fuel line for fuel loss. Pressure doesnt change. any ideas???

Could be a vaccum leak. My brother has had several Audi's, and this is a common symptom of power loss. Also, have you had it's computer checked?

Could be a vaccum leak. My brother has had several Audi's, and this is a common symptom of power loss. Also, have you had it's computer checked?