Could not see the flucuation w/the tach but could definately hear it & feel it.

Also had a CEL on.

This was going on for a week ,then got an appointment @ a Audi dealer,but at a couple days before we took it in,there was a loud high pitch squeeling ,sorta sounded like the front brakes squeeling,but it was not the brakes.

My wife took her car in because the idle was hunting/surging @ 850 RPM or so,also a CEL & loud whistle

Anyways,the dealer rep knew exactly what it was & said it would take about an 1/2 hr to fix it.

The part they changed was a PCV,,they called it a power control valve,,,is that the diverter/blow off valve?

Thanks

Car runs great again.

 

TTT,,,anyone???

 

TTT,,anyone know?

 

I've only seen PCV previously to mean Positive Crankcase Ventilation. So I don't know whether those would be the same thing.

 

However, are you asking if yours could be the same thing? I'm confused...

 

The dealer called it a power control valve,my question is,,,,,,,,,,,,,,is the power control valve a diverter valve A.K.A. blow off valve that recirculates back into the intake system?

Is this the part that fails when running higher boost pressure than stock boost levels?..... I think the factory has a platic diaphram?

The upgrade is a forge diverter valve. Like this http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWAX%3AIT

or http://cgi.ebay.com/ebaymotors/Forge...Q5fAccessories

Thanks

 

Your gonna haveta get clarification.. as far as I know, there is no power control valve.

 

When my PCV valve was defective I had a little oil being pushed out around the filler cap. Also my performance was a bit off. There was no strange noises coming from the engine though. And yes, PCV is Positive Crankcase Ventilation. Your mechanic may have meant
the diverter valve?

http://forums.vwvortex.com/zerothread?id=3366758