[V8] V8 very sick

[Ed Kellock]

Dave is on the mark here.  You can "test" the oxygen sensor by
unplugging it and seeing how it runs/drives after that.  Although, if
it's been a while since it was replaced, it probably should be
replaced regardless.

The OXS is anywhere from about 40 bux if you buy a Bosch generic that
requires wire splicing or up to about 150 if you buy the "right" one
for the car, which only means it comes with the right connector on the
end of the wires and is plug-n-play.

FPR is about 60-70 bux and takes about 10-15 minutes to replace.

I'd go after the OXS first.  There are 3 wires, 2 for the heater, one
for the actual signal to the ECU.  You only need to unplug the one
signal wire.  If that seems to resolve the issue, you can drive with
it unplugged without damaging the engine.  Fuel economy won't be
optimal and the environment will suffer marginally, but you'll be able
to get around with some confidence.


If you're shopping online, I have good luck and satisfaction with
autohausaz.com.

Ed

On Jan 9, 2008 7:13 AM, Coleman, David <David.Coleman at blackrock.com> wrote:
> First things first -- the old standbys:
>
> 1)  pull the codes (let us know if you need direction here)
> 2)  replace fuel pressure regulator
> 3)  replace O2 sensor
>
> Germanautoconnection.com is a good place to start shopping for the
> latter two items.
>
> -DaveC.
>
>
>
>
>
>
> > -----Original Message-----
> > From: v8-bounces at audifans.com [mailto:v8-bounces at audifans.com] On
> Behalf Of
> > Deedza Mav
> > Sent: Wednesday, January 09, 2008 9:02 AM
> > To: v8 at audifans.com
> > Subject: [V8] V8 very sick
> >
> >
> >
> >
> >
> > My 90 V8 is stuttering,misfires,at times cuts off at traffic
> lights,stop signs.the
> > audi stalls,sometimes it will not even respond when i give it
> > gas to a point where it just dies off.but when i start it again,it
> > responds normal for a second but will start to stall again and cut
> > off.it does not matter cold or warm start,the audi will start to
> > sputter.mech replaced Plugs, wires, caps & rotors, fuel
> > filter.funny thing is today i drove it to work,was ok after a cold
> > start,when i on my way back it started to lose power and out of
> > nowhere,its like its been injected with some nitro coz it just taks
> > off.i got home and I let it idle for 45 mins and it did not cut off,I
> > even drove it around with no problems...3 hrs later I started it and
> it
> > was cutting off again.
> >
> > I took it in to an Audi mechanic and he said all it neeeded was a
> major tune up
> > which he did-$800.
> >
> > After a new days it started again and he says it maybe the fuel pump.
> >
> > any thoughts?????
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