[Shotimes] Re: Shotimes] High NOX

[Paul Nimz]

NOx is the result of high combustion temps.  The EGR system cools the
combustion temps by depriving the engine of ambient temp oxygen and replacing
it with hot exhaust gasses....

But timing is a big factor too so pulling the spout plug should really help
here.

Paul


On 10/21/2005 10:39:07 AM, awfanning@earthlink.net wrote:
> High Nox is usually a result of a malfunctioning EGR system for those of
> us
> with Calif cars or ATX's. Without EGR, I would look at the cat's as a
> possible issue, or ay engine
> mod's that would result in non-optimal air/fuel
> ratio.
>
> For smog testing purposes you can pull the shorting plug located adjacent
to
> the plug used to pull the codes. This will reduce the timing which then
> reduces Nox. The car drives like a "pig" tho',
> so
> don't try to go far this
> way.
>
> Alan
>
>
>
> > From: TBailSHO@aol.com
> > Date: Thu, 20 Oct 2005 22:55:01 EDT
> > To: shotimes@autox.team.net
> > Subject: [Shotimes] High NOX
> >
> > I recently ran my 91'
> through the state of Ohio version of the semiannual
> > required emission test.  All test results were well within limits with
> the
> > exeption of the Nox which had a reading of 865 PPM against a bogey of
> 878.  In
> > other
> > words I made it by the skin of my teeth.  The good news is that my
> county
> > will no longer be a tested area after the first of the year.  My
> concerns are
> > if
> > I am doing damage to my car, or if the ozone layer ove