Oxides of Nitrogen

["jerry hesch" <jerryhesch@xxxxxxxx>]

OOOPS! hit the send key too early on previous reply.  Great advice Neil.
This is one example of the many recent bits of practical advice that I-an
armchair mechanic enjoy learning from the IML site.  In spite of me being an
armchair mechanic, my son is  a Mercedes mechanic!
regards
Jerry53----- Original Message -----
From: "Neil Thorpe" <nt014b6628@xxxxxxxxxxxxxxxx>
To: <mailing-list@xxxxxxxxxxxxxxxx>
Sent: Monday, April 28, 2003 12:38 PM
Subject: IML: Oxides of Nitrogen


> Bill,
>
> I don't know if it helps but the tiniest of exhaust leaks can cause big
> fluctuations
> in the exhaust gas readings. Try warming up the engine for a bit them get
> the
> car up on a ramp or over a pit if you can and get someone to hold a rag
over
> the
> tail pipe end for a few seconds at a time and listen for leaks, i have had
> first hand
> experience of this of a car go from failed to passed on an annual
> inspection.
>
> Neil 82 Imp
> London England.
>
>
> ----- Original Message -----
> From: "Bill Watson" <wwatson@xxxxxxxxx>
>
> > Oxides of Nitrogen have an average reading of 562.50 ppm with a maximum
of
> > 1716 ppm.   The Imperial failed with 2982.0 ppm.
> >
> > I suspect the problem is with the EGR.  Any thoughts?
> >
> > BC AirCare stats show the Imperial averages to be way below the maximum
> > allowable limits.  1983 Imperials appear to be very clean running cars.
> >
> > Bill
> > Vancouver, BC
>
>
>
>