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

[Greg Furstenwerth]

I can vouch for terrible smelling exhaust... replace the O2 sensor and 
its gone and the MPG is up again... now it may not be that simple but 
thats a good place to start!

Greg
93V8Q

Might I note that the previous owner did a terrible splice on the thing 
and it might have contributed to the problem. Depending I would check 
that splice this is what caused the "check engine" to randomly flick on 
and off.

Ingo Rautenberg wrote:
> Carter,
>
> 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).
>
> HTH
>
> Ingo
>   ----- 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.
>
>
>   Carter
>
>   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" 
>     To: 
>     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
>     >
>     > ---------------------------------
>     > Get amazing travel prices for air and hotel in one click on Yahoo!
>     FareChase
>     > _______________________________________________
>     > Audifans V8 mailing list
>     > Send posts to: mailto:V8 at audifans.com
>     > Manage your list connection: http://www.audifans.com/mailman/listinfo/v8
>     > Have an Audi V8 question? Check the Audifans Knowledgebase!
>     > http://www.audifans.com/twiki/bin/view/Audi/V8
>     > Have a V8 answer? ... Please help others by adding to the KB ... all
>     contributions welcome!
>     >
>
>
>
>
>
>   W. Carter Johnson
>   SileStone/Counterfitt of RI
>   401-789-3217 home
>
>
> ------------------------------------------------------------------------------
>   Yahoo! Messenger with Voice. PC-to-Phone calls for ridiculously low rates.
> _______________________________________________
> Audifans V8 mailing list
> Send posts to: mailto:V8 at audifans.com
> Manage your list connection: http://www.audifans.com/mailman/listinfo/v8
> Have an Audi V8 question?  Check the Audifans Knowledgebase!
> http://www.audifans.com/twiki/bin/view/Audi/V8
> Have a V8 answer? ... Please help others by adding to the KB ... all contributions welcome!
>
>