[s-cars] Rough running - need advice what to try next?

[James Murray]

I was worried someone was going to blurt that out... bugger if it is!!! 
 
If it is the POS dying, by golly I'm going to heat sink those
suckers...like I should have in the first place!
 
/Jamu.

________________________________

From: djdawson2 at aol.com [mailto:djdawson2 at aol.com] 
Sent: Tuesday, September 25, 2007 2:17 PM
To: fastscirocco_2000 at yahoo.com; James Murray; s-car-list at audifans.com
Subject: Re: [s-cars] Rough running - need advice what to try next?


POS


-----Original Message-----
From: chris chambers <fastscirocco_2000 at yahoo.com>
To: James Murray <james.murray at ericsson.com>; Scar
<s-car-list at audifans.com>
Sent: Tue, 25 Sep 2007 10:23 am
Subject: Re: [s-cars] Rough running - need advice what to try next?


James,

If your oxygeon sensor is old I'd replace that first. 

Based on the fact that it happens after the car has warmed up makes
me want to look at the wiring to the coils. I'm picturing a crack in
the
wiring or a weak coil.

Good luck

Chris


--- James Murray <james.murray at ericsson.com> wrote:

> 
> Is my email getting through? I see nothing posted...
> 
> /J
> > _____________________________________________ 
> > From:   James Murray  
> > Sent:   Monday, September 24, 2007 3:09 PM
> > To: s-car-list at audifans.com
> > Subject:    Rough running - need advice what to try next?
> > 
> > List advice needed....
> > 
> > Patient: 93 UrS4
> > 
> > Symptoms: Once warmed up, car runs rough, loss of power
> (hesistation
> > and slight bucking on acceleration), as if running with one less
> > cylinder or not getting fuel...no check engine light illuminated
> (but
> > have not pulled codes yet). Car seems fine when first cold,
> starting
> > up. 
> > 
> > Procedures attempted: Swapped out coil pack, Spark Plugs, and WGFV
> (no
> > appreciable difference). Have tried pulling injector connectors on
> > each cylinder, just makes it worse at idle.
> > 
> > Next on the list of potential items to check:
> > 
> > 1. Oxygen Sensor
> > 2. Knock Sensors
> > 3. POS Device
> > 4. Fuel pump
> > 5. Injectors
> > 6. MAF
> > 
> > My number 1 candidate right now is the Oxygen Sensor... what is the
> > list advice? 
> > 
> > Cheers, /Jamu.
> _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
> http://www.audifans.com/mailman/listinfo/s-car-list
> 


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