My S4 is not running properly. Are there any S4 enthusiasts in my area (Alexandria, VA) who would like to take a look at the car and help me diagnose what may be wrong with it? If none, then I will go to the stealership.

 

Welp, I'm here in NOVA... I work in Alexandria and live down in Hoodbridge... I'm pretty new to the Audi scene - not so new to cars in general though. What's the problem? What year is the car? I take it you would be going to Audi of Alexandria if it came down to it? Dion over there has taken good care of me since I've been an owner...

Anywho... lemme know what the problem is.

 

I'm also new to the Audi scene.

The car is 2001 S4 – 86k and is feeling very slow. Not sure if it has gone into “limp mode” (5 lbs of boost). I do not have a boost gauge installed yet, so I can not monitor the boost pricesely.

A week ago I had 2 CELs - (b1s1 - internal resistance too high) and P1131 (b2s1 - internal resistance too high). I purchased new O2 sensors but before the sensors arrived I cleared the codes and they haven’t showed up again. I read this http://www.audiworld.com/tech/eng101.shtml and then I measured the ohms on my current sensors and (for my surprise) they seem to be working properly.

There is a hose between my stock DVs which looked cracked (pictures - https://www.audiforums.com/m_662029/tm.htm), so I replaced that little hose with a regular 5.5 inch 5/32 rubber hose from Adv Auto Parts. It seems that the boost is worst now. And that original hose (although it seemed cracked) seems fine. Now, I hear a lot more “ssssssssss” while shifting.