davidlindley

My Audi is throwing the above codes and it seems like my PCV Crankcase valve is hissing alot, and the engine is running rough. Occassionally I am getting the check engine light to start blinking. I have cleaned my MAF, and changed air filter, plugs (NGK) and new coil packs with no change. Please help! I have a video link of my motor running below, thanks

http://www.youtube.com/watch?v=dXv86...ature=youtu.be




David Lindley
Scottsdale Az

2003Quattro1.8T

Replace the PCV Valve? Check all your Breather cables that run to that PCV Valve also the one that is under the intake manifold. had a similar problem, but i had a huge crack in the breather hose under the intake manifold. Replace it and it was all good

davidlindley

THANK YOU!

Replaced the Turbo Pressure Regulating Valve (PCV is what I called it and the valve I had my hand on in the vid) and we are good to go!!! thank you very much for the advice and hopefully my CEL will clear soon but it runs much better and no misfiring.

David Lindley

davidlindley

So after two days w/out an idling issue the motor is doing the exact same thing again. I am getting hissing from the new PRV and it is idling rough. Is the PRV supposed to have this hissing sound coming from it? What would cause the PRV to start doing this again?

davidlindley

Would the crack in the hose under the intake manifold cause the PRV to go bad after it was replaced? It seemed like after I replaced the old PRV with the new one it was fine for a few days but it is doing it again. Hissing from the relief from the replaced NEW PRV and and rough idling with the CEL on. I have since checked all vacuum lines and check valves for vacuum leaks and still have found none. Any more advice before I remove the intake and check that hose you are speaking of underneath it? or do you just think I should take it in?

Thanks for all your help
David Lindley

davidlindley

Turns out it was the PCV valve and the line coming from the PVC to the top of the intake (zip tied on). So I replaced the PCV valve with a new one and then I put a hose clamp on the other one and we are good to go. Runs like a champ and my CEL already cleared. Thanks!!!!!