Recently, I've noticed that the RPM on my Audi 80 keeps going up and down, even when the car is in idle. It's very annoying and I'm worried it might be a sign of a bigger issue. Can anyone help me understand and resolve this problem?
ReplyBased on my experience with my own Audi 80, fluctuations in RPM can be caused by a vacuum leak or a dirty throttle body. Try checking and cleaning these components to see if it resolves the issue. Remember to also check for any damaged vacuum hoses.
I used to have a similar issue with my Audi 80 and it turned out to be a faulty mass air flow sensor. I had it replaced and the RPMs stabilized. Get it checked by a mechanic to see if it's the same issue for your car.
Fluctuating RPM can also be caused by a faulty idle control valve. It's a common issue with older Audi 80 models. If cleaning or replacing the vacuum components and mass air flow sensor doesn't work, have a mechanic check the idle control valve.
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