My car engine RPM is fluctuating

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1994-2001 Audi A4 (B5)

The first generation Audi A4 debuted in October 1994. The 1995-2001 A4 was built on the Volkswagen B5 platform.

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Montgomery James Kern @mjkern Rep: 1k NetCraft Industries 7 1 · Answer 1 · 2024-06-16T19:53:34-07:00

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Greetings Dillip,

The first thing I would do is check for vacuum line leaks and do a Throttle Body Adaptation.

Disconnect battery for 30 mins.
Reconnect
Turn key to on for 15 secs ( You will hear clicking as the adaptation is going on ).

Start engine

If it doesn't improve, check again for vacuum leaks. - If no vacuum leaks can be found. Scan the car with an OBD scanner and check the O2 sensor.

Report back with the results and let me know.

Cheers!!

Moe

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