[Shotimes] Emissions question

[Kenneth Epperly]

Fuel pump higher version, around 20 k on it, 92 MTX non Calf. car. No
missing, resealed plug wells last weekend. As soon as it dries up a bit
today will scan for codes.

        Thanks, Ken
----- Original Message ----- 
From: "Leigh Smith" <leighsm@comcast.net>
To: "Kenneth Epperly" <epperly1@optonline.net>; "SHO Times"
<shotimes@autox.team.net>
Sent: Saturday, November 20, 2004 9:41 PM
Subject: Re: [Shotimes] Emissions question


> Ken,
> Also old fuel pumps lose pressure and lean things out before they die.
They
> throw no codes.
> Eventually it starts missing at 2500-3200 rpm cruise, the leanest point.
> Mine only did it when half-way warmed up. It can get very bad with almost
> undriveable bucking..
> Other high NOX possibilities are crossfiring plug fires, oil in plug
wells,
> vacuum leaks, engine pinging, burning oil, etc.Whether you can "feel" it
> lean-out or not has to do with how severe  it is. It will show up in the
> emissions first, then power, then gas mileage, then seat of the pants
feel.
> All this assumes no ATX and no EGR.
>
> Lee
>
> ----- Original Message ----- 
> From: "Kenneth Epperly" <epperly1@optonline.net>
> To: "SHO Times" <shotimes@autox.team.net>
> Sent: Saturday, November 20, 2004 5:43 PM
> Subject: Re: [Shotimes] Emissions question
>
>
> > Yes this is what info I am looking for. There is no miss, has a new
Y-pipe
> > also need to check water temp and scan for any codes. Might change O2
> > sensors if nothing else shows up. this is NJ also.
> >
> >         Ken
> > ----- Original Message ----- 
> > From: "Leigh Smith" <leighsm@comcast.net>
> > To: "Kenneth Epperly" <epperly1@optonline.net>; "SHO Times"
> > <shotimes@autox.team.net>
> > Sent: Saturday, November 20, 2004 5:06 PM
> > Subject: Re: [Shotimes] Emissions question
> >
> >
> > > I'd assume misfire & lean. %CO goes to zero, NOX skyrockets. Curve? is
> > > almost straight up. Too much heat.
> > > FYI, my all-new 1200 mile SHO engine just passed at 662 ppm NOX, 11
ppm
> > HC,
> > > and 0.10 %CO on NJ state chassis dyno.
> > > :-)
> > > Lee
> > > 94 MTX
> > >
> > > ----- Original Message ----- 
> > > From: "Kenneth Epperly" <epperly1@optonline.net>
> > > To: "SHO Times" <shotimes@autox.team.net>
> > > Sent: Saturday, November 20, 2004 2:41 PM
> > > Subject: [Shotimes] Emissions question
> > >
> > >
> > > > As I frequently go brain dead and do not remember what is out of
> > > adjustment. 92 SHO NO2 way high 1000 ppm over, CO2 way under 0.000.
> > > >
> > > >
> > > >             thanks, Ken
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