Hi Scotty, I have a 2013 Audi A4 with 150,000 miles, manual transmission, and the original owner. The only thing that I have replaced on it are all four struts and the control arms. The car is running well but the gas pedal is intermittently tapping and something is making a faint ticking sound and the rpm’s rev up when I just take it out of gear and let go of the clutch. It won’t do it when it idles and only when it moves. The only thing I can think of is that the throttle has some carbon buildup or the connection between the pedal and the electronics but if there is any other possible cause please help.
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Well first try cleaning it as in my video make your car run better with little spray cleaner. If that doesn't fix it, you may need a new parts which are super expensive on Audis like a new throttle assembly
