Oxides of Nitrogen

["Neil Thorpe" <nt014b6628@xxxxxxxxxxxxxxxx>]

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