I need help identifying where this problem is coming from.....while driving anywhere from 35 mph to 50 mph my audi will rev up at least 200 rpm and then go back down to where it was. It does it over and over there is no stopping unless I get over 2000 rpm. The car will continue to drive at the same speed as its doing this. I can hear it as I drive and would assume it's the reason my gas is going away so quickly. Some one help me please
Sent from my LG-H901 using Audizine mobile app
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