[s-cars] rough running when cold

[Michael Wakefield]

If the heater in the oxygen sensor isn't working, the engine will run  
rich for a short period until the sensor heats up from the exhaust gas.
Mike Wakefield
93S4
97Cab

On Jul 12, 2005, at 7:25 PM, Elijahallen92 at aol.com wrote:

> Hi all, my car is running great when it warms up but when I first  
> start it
> and drive at neutral throttle it feels like all at once the car  
> will just loose
>  engine power for a couple seconds then as fast as it was gone its  
> back. This
>  only happens in the first mile then it runs normal. aAny idea's?  
> The only
> other thing that I'm trying to figure out is every once in a while  
> when I push
> in on the clutch to downshift when coming to an intersection the  
> car will
> stall.  I have switched the ISV with a spare but it still does it.  
> What else
> could cause  this? Thanks for any help.
>
> Elijah (my cars specs to date below)
>
> 91 Audi Coupe Quattro- AAN engine transplant, K27 hybrid turbo,  
> Bailey BV,
> custom tube header, 3" custom turbo back exhaust with WG exhausted  
> seperate,
> stiffer WG spring, port and polished head with 3 angle valve job,  
> 7A exhaust
> cam, RS2 injectors, RS2 MAF, 19 row Mocal oil cooler, 24x12x3 FMIC,  
> Dahlback
> Racing intake manifold, Pauder Rods, TS tuning SW (soon to be  
> Mihnea tuned),
> ARP  head studs, multi layer steel head gasket, custom dual core  
> aluminum
> radiator,  battery relocated to the rear, custom front crossmember,  
> 11lb aluminum
> flywheel,  clutchnet six puck clutch, H&R springs, Koni adjustible  
> shocks, 28mm
> RS2  front swaybar, 18mm whiteline adjustible rear swaybar, solid  
> aluminum
> subframe  bushings, solid aluminum strut tower bushings (Mance  
> Mounts), Nylon
> control arm  bushings, Five lug URS4 hubs in front with 993 Porsche  
> big blacks,
> custom  aluminum hats with 993 cast drilled rotors in front, new  
> beetle vented
> 280mm  rotors in rear with URS4 rear calipers with S8 carriers, s2  
> gauges,
> 30lb boost  gauge, RS2 headlights, RS2 (fiberglass) front bumper,  
> B4 hood, S2
> fogs and  sidemarkers, SSR competition wheels, and a whole hell of  
> a lot of  fun!
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