[200q20v] carbon on spark plugs

Brett Dikeman brett at brettd.dsl.speakeasy.net
Thu Apr 19 17:05:41 EDT 2001

200q20v's will often experience a lot of running problems unless you use
the exact plug specified by Audi.  Since it's a 200q20v list, people
assumed you had a 200q20v and the wrong set of plugs.  Since that's not
the case, I doubt the plugs are the source of your problem.  More likely,
you're running rich, or having ignition problems causing an incomplete

Are you sure the "popping" isn't knocking(predetonation)? Does the engine
light come on during this popping?

(by the way, this thread should probably get transferred over to the main
qlist now)


 On Thu, 19 Apr 2001, omllenado wrote:

> I cant believe that the model of the car/engine/20V or 10V will be a factor
> to why a plug gets carbonized.
> yes its a 10V and i dont drive a 91 200q 20V, ...just a '89 200.  sorry me.
> Oliver
> "Imagination is more important than knowledge, for knowledge is limited
> while imagination embraces the entire world."(Einstein)
> ----- Original Message -----
> From: "Phil Rose" <pjrose at frontiernet.net>
> > AFAIR, Oliver does not drive a '91 200q. Why post here? Beats me.
> > Oliver, it would seem more appropriate for you to direct 10V audi
> > questions to the Qlist. Not that we're so busy, but it can get
> > confusing.

> > At 4:30 AM -0700 4/19/01, Fundsalo Racing wrote:
> > >W7DTC is not the correct plug for the 200q20v engine.
> > >Dunno if that is the prollum or not, but you should be
> > >running the correct plugs before additional
> > >troubleshooting efforts.  F5PDOR or something simiar
> > >to that... Someone here will respond with the fer-sure
> > >correct number - no doubt.
> > >

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