[V8] Audi V8 - we build excitment! (Woes of V8 ownership)

Carter Johnson carterjohnson3 at yahoo.com
Wed May 10 21:49:49 EDT 2006

Stupid question, but wouldn't an oxygen sensor throw the OXS light instead of the check engine light?
  I mean, what's the point of the OXS light then?

Ingo Rautenberg <i.rautenberg at waratap.com> wrote:
  Hmm.  Methinks it's a OXS sensor problem (or related wiring).  The resistance values tell the computer to dump more fuel (had it with the 5-speed), but if the wiring has been cut or somehow compromised, the correct values will never be obtained.  Instead, you'll be washing the cylinder bores with fuel, fumigating the cars behind you, and emptying your wallet.  I'd disconnect the signal (black) wire from the OXS and see what happens.  Then I'd check fro compromised wiring and repair/replace oxs sensor.  If that doesn't do it, it could well be the  temp sensor below the pass side distributor (but that should give a code).
    ----- Original Message ----- 
  From: Carter Johnson 
  To: Ingo Rautenberg ; v8 at audifans.com 
  Sent: Wednesday, May 10, 2006 4:46 PM
  Subject: Audi V8 - we build excitment! (Woes of V8 ownership)

  Ah Ingo, how right you are.
  So, my latest (3000 mile) problem:
  I'm driving along, I smell raw, unburned or partially burned fuel, immediately check engine light comes on, and milage drops to ~14 mpg at best.  Driving is uneffected, from what I can tell.  This comes and goes, but in the last 3000, it's mostly been there.
  Any thoughts?  

My guess: Engine thinks it is running lean (knock sensor malfunctioning?) and dumps fuel into the motor. 
  This coincided with the changeover to Ethonol "summer gas", interestingly, and at the same time my cousin's S4 started running rather poorly (perhaps unrelated, but it wouldn't surprise me if the gas was to blame).
  At 3+ a pop for a gallon, it would be nice to be back around 21mpg, but not if it's a 1,000$ sensor.

Ingo Rautenberg <i.rautenberg at waratap.com> wrote:
  As Mike Arman would say, "Not just a car, its an ADVENTURE!"


----- Original Message ----- 
From: "Carter Johnson" 
Sent: Wednesday, May 10, 2006 4:22 PM
Subject: [V8] shiftlock

> This JUST started happening in my car, as well - also a 93. Hmmmm.
Disconcening the first time it happened, for sure!
> Carter
> Message: 8
> Date: Wed, 10 May 2006 14:32:55 -0400
> From: Ingo Rautenberg 
> Subject: Re: [V8] ShiftLock problem..
> To: ur32vquattro 
> Cc: v8 at audifans.com, Scott Baumann / PTS Power 
> Message-ID: <9DEDD3CA-AACE-4126-A1BA-C7DC45FFAC39 at waratap.com>
> Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
> Which reminds me. On the '93, it seems half the time when I move the
> shifter to park, I find that the key won't release and then the
> reason: The shifter does not pop up at the end. Quick lift on the
> knob and the ignition is unlocked.
> Ingo
> W. Carter Johnson
> SileStone/Counterfitt of RI
> 401-789-3217 home
> ---------------------------------
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W. Carter Johnson
SileStone/Counterfitt of RI
401-789-3217 home     
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W. Carter Johnson
SileStone/Counterfitt of RI
401-789-3217 home
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