Frank,
I'd like to add the EGR is not operating under WOT or low vacuum situations.
KW
Holloway,Frank T wrote:
> Eric & William.
> I don't know if my earlier post made it to the DML (I didn't see it) so I
> will send it again. The 95's definitely have an EGR system. It is located at
> the rear of the intake
> manifold, on the passenger side. My 98 does not have an EGR system. Take a
> look on your trucks to see if you have it but I wouldn't block it off.
> The introduction of exhaust (inert gasses) into the intake slows the
> fuel/air burn process causing the combustion temperature to be lower. The
> lower combustion
> temp. reduces NOx. We sacrifice a little bit of performance and gas mileage
> for this reduction. Someone asked earlier of we could just bypass the EGR
> for performance gains. Unfortunately we can't because the computer does test
> the EGR system occasionally. The computer under certain conditions will
> cycle the EGR
> valve and look for a change at the O2 sensor, if a change is not seen, then
> you get an error code. Dodge will not tell you exactly what conditions
> trigger this test, but
> it is documented in the service manuals (95 for sure). Hope this helps.....
>
> Frank
>
> > -----Original Message-----
> > From: William Blount Arthur [SMTP:m990198@nadn.navy.mil]
> > Sent: Tuesday, November 10, 1998 7:34 AM
> > To: dakota-truck@buffnet.net
> > Subject: Re: DML: EGR
> >
> > Where is it?
> >
> > > Yeah, the 97 have one. Ive blocked mine off in the past, it actually
> > helped
> > > when I switched from stock to dual exhaust. My exhaust guy showed me
> > the
> > > difference, I didnt believe him till I did it. When I got my headers I
> > > unblocked it. Havent tried it blocked with the headers yet.
> > > Eric
> > >
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