MarkK

Took my car into the dealer to get the problem looked at. They tell me that fuel injector number 6 was bad and replaced it. When I got the car back, nothing improved. The idle fluctuates about 200 rpm. It's not much but annoying. The service advisor tells me there's nothing else he can do since there is no fault codes in the computer. Tells me to use 87 octane for 2 full tanks. Says it worked for some A6 customers.

I'm not a mechanic but I suspect a throttle position sensor is out of wack or a vacuum hose loose somewhere. Anybody out there with this same problem or had the same problem? Any suggestions or insight welcomed! Thank you!

98.5 A4 2.8QM

Reggie3

My 98.5 2.8 is not that smooth either - I think it is typical of the engine

EricBell

problem. The car actually stalled on me at the dealership when I was picking it up after taking it to them to look at this issue. They ended up replacing both CO2 sensors. It was fine after that for about 4 months but is starting to act up again a little.


-Eric

HeavyC

The 30v just idles a tad rough, and it "flutter" if you listen, live with it