Hey everyone... I have a 1998 Audi A4 Quattro and just recently I began hearing a whirring sound coming from the engine (which sounds like the fan belt to me), but I am not sure. Also, with the onset of this noise the Check Engine light has just come on. Any idea what is wrong?

Thanks,

J

 

Go to Autozone and get it scanned for free then post the codes.

Any noises other than start-up?

 

I will get it out to Autozone and get codes posted as soon as I can. No, other than that there are no other sounds, so I am open to any possible problems or solutions.

 

We are open to help as soon as you retrieve the fault codes.

 

ever get those codes??

 

Going this evening to get the codes, so I should have them up and posted around 5-6pm.

 

My car makes a whirring noise like that too when I start it, mostly when it is colder though. I think it is just a belt of some kind, I never got a CEL from it though.

 

Could be your A/C...

SMo'

 

Ok everyone, here are the codes:

DTC (Codes)
P0411
Secondary Air
Injection System
Incorrect Flow

DTC Pending (Codes)
P0332
Knock Sensor 2
Circuit Low Input
(Bank 2)

Thanks for the help

 

EVAP Emission Control Sys: Incorrect Flow

Bentley Repair Manual on CD says this:
Tank ventilation system throughput faulty
- Check Evaporative Emission (EVAP) canister purge regulator valve
- Check hoses and connecting pipes from fuel tank to throttle valve control module: